diff --git a/README.md b/README.md
index e655439..d0474c7 100644
--- a/README.md
+++ b/README.md
@@ -169,6 +169,18 @@ public class CustomizedMaskedLogs
     [LogMasked]
     public string? DefaultMasked { get; set; }
 
+    /// <summary>
+    /// 9223372036854775807 results in "***"
+    /// </summary>
+    [LogMasked]
+    public long? DefaultMaskedLong { get; set; }
+
+    /// <summary>
+    /// 2147483647 results in "***"
+    /// </summary>
+    [LogMasked]
+    public int? DefaultMaskedInt { get; set; }
+
     /// <summary>
     /// [123456789,123456789,123456789] results in [***,***,***]
     /// </summary>
@@ -211,6 +223,18 @@ public class CustomizedMaskedLogs
     [LogMasked(ShowFirst = 3)]
     public string? ShowFirstThreeThenDefaultMasked { get; set; }
 
+    /// <summary>
+    /// 9223372036854775807 results in "922***807"
+    /// </summary>
+    [LogMasked(ShowFirst = 3, ShowLast = 3)]
+    public long? ShowFirstAndLastThreeAndDefaultMaskLongInTheMiddle { get; set; }
+
+    /// <summary>
+    /// 2147483647 results in "214****647"
+    /// </summary>
+    [LogMasked(ShowFirst = 3, ShowLast = 3, PreserveLength = true)]
+    public int? ShowFirstAndLastThreeAndDefaultMaskIntInTheMiddlePreservedLength { get; set; }
+
     /// <summary>
     /// 123456789 results in "123******"
     /// </summary>
@@ -230,11 +254,17 @@ public class CustomizedMaskedLogs
     public string? ShowLastThreeThenDefaultMaskedPreservedLength { get; set; }
 
     /// <summary>
-    /// 123456789 results in "123REMOVED"
+    /// 123456789 results in "123_REMOVED_"
     /// </summary>
     [LogMasked(Text = "_REMOVED_", ShowFirst = 3)]
     public string? ShowFirstThreeThenCustomMask { get; set; }
 
+    /// <summary>
+    /// d3c4a1f2-3b4e-4f5a-9b6c-7d8e9f0a1b2c results in "d3c4a_REMOVED_"
+    /// </summary>
+    [LogMasked(Text = "_REMOVED_", ShowFirst = 5)]
+    public Guid? ShowFirstFiveThenCustomMaskGuid { get; set; }
+
     /// <summary>
     /// 123456789 results in "123_REMOVED_"
     /// </summary>
@@ -284,7 +314,7 @@ public class CustomizedMaskedLogs
     public string? ShowFirstAndLastThreeAndCustomMaskInTheMiddlePreservedLengthIgnored { get; set; }
 }
 ```
-<sup><a href='/src/Destructurama.Attributed.Tests/MaskedAttributeTests.cs#L8-L133' title='Snippet source file'>snippet source</a> | <a href='#snippet-CustomizedMaskedLogs' title='Start of snippet'>anchor</a></sup>
+<sup><a href='/src/Destructurama.Attributed.Tests/MaskedAttributeTests.cs#L8-L163' title='Snippet source file'>snippet source</a> | <a href='#snippet-CustomizedMaskedLogs' title='Start of snippet'>anchor</a></sup>
 <!-- endSnippet -->
 
 ## 7. Masking a string property with regular expressions
diff --git a/src/Destructurama.Attributed.Tests/MaskedAttributeTests.cs b/src/Destructurama.Attributed.Tests/MaskedAttributeTests.cs
index 72dfe58..80686ac 100644
--- a/src/Destructurama.Attributed.Tests/MaskedAttributeTests.cs
+++ b/src/Destructurama.Attributed.Tests/MaskedAttributeTests.cs
@@ -15,6 +15,18 @@ public class CustomizedMaskedLogs
     [LogMasked]
     public string? DefaultMasked { get; set; }
 
+    /// <summary>
+    /// 9223372036854775807 results in "***"
+    /// </summary>
+    [LogMasked]
+    public long? DefaultMaskedLong { get; set; }
+
+    /// <summary>
+    /// 2147483647 results in "***"
+    /// </summary>
+    [LogMasked]
+    public int? DefaultMaskedInt { get; set; }
+
     /// <summary>
     /// [123456789,123456789,123456789] results in [***,***,***]
     /// </summary>
@@ -57,6 +69,18 @@ public class CustomizedMaskedLogs
     [LogMasked(ShowFirst = 3)]
     public string? ShowFirstThreeThenDefaultMasked { get; set; }
 
+    /// <summary>
+    /// 9223372036854775807 results in "922***807"
+    /// </summary>
+    [LogMasked(ShowFirst = 3, ShowLast = 3)]
+    public long? ShowFirstAndLastThreeAndDefaultMaskLongInTheMiddle { get; set; }
+
+    /// <summary>
+    /// 2147483647 results in "214****647"
+    /// </summary>
+    [LogMasked(ShowFirst = 3, ShowLast = 3, PreserveLength = true)]
+    public int? ShowFirstAndLastThreeAndDefaultMaskIntInTheMiddlePreservedLength { get; set; }
+
     /// <summary>
     /// 123456789 results in "123******"
     /// </summary>
@@ -76,11 +100,17 @@ public class CustomizedMaskedLogs
     public string? ShowLastThreeThenDefaultMaskedPreservedLength { get; set; }
 
     /// <summary>
-    /// 123456789 results in "123REMOVED"
+    /// 123456789 results in "123_REMOVED_"
     /// </summary>
     [LogMasked(Text = "_REMOVED_", ShowFirst = 3)]
     public string? ShowFirstThreeThenCustomMask { get; set; }
 
+    /// <summary>
+    /// d3c4a1f2-3b4e-4f5a-9b6c-7d8e9f0a1b2c results in "d3c4a_REMOVED_"
+    /// </summary>
+    [LogMasked(Text = "_REMOVED_", ShowFirst = 5)]
+    public Guid? ShowFirstFiveThenCustomMaskGuid { get; set; }
+
     /// <summary>
     /// 123456789 results in "123_REMOVED_"
     /// </summary>
@@ -289,6 +319,25 @@ public void LogMaskedAttribute_Shows_First_NChars_Then_Replaces_All_With_Custom_
         props["ShowFirstThreeThenCustomMask"].LiteralValue().ShouldBe("123_REMOVED_");
     }
 
+    [Test]
+    public void LogMaskedAttribute_Shows_First_NChars_Then_Replaces_All_With_Custom_Mask_Guid()
+    {
+        // [LogMasked(Text = "_REMOVED_", ShowFirst = 5)]
+        // -> "d3c4a_REMOVED_"
+        var customized = new CustomizedMaskedLogs
+        {
+            ShowFirstFiveThenCustomMaskGuid = Guid.Parse("d3c4a1f2-3b4e-4f5a-9b6c-7d8e9f0a1b2c")
+        };
+
+        var evt = DelegatingSink.Execute(customized);
+
+        var sv = (StructureValue)evt.Properties["Customized"];
+        var props = sv.Properties.ToDictionary(p => p.Name, p => p.Value);
+
+        props.ContainsKey("ShowFirstFiveThenCustomMaskGuid").ShouldBeTrue();
+        props["ShowFirstFiveThenCustomMaskGuid"].LiteralValue().ShouldBe("d3c4a_REMOVED_");
+    }
+
     [Test]
     public void LogMaskedAttribute_Shows_First_NChars_Then_Replaces_All_With_Custom_Mask_PreservedLength_Ignored()
     {
@@ -691,6 +740,84 @@ public void LogMaskedAttribute_Shows_First_NChars_And_Last_NChars_Then_Replaces_
         props["ShowFirstAndLastThreeAndCustomMaskInTheMiddlePreservedLengthIgnored"].LiteralValue().ShouldBe("123_REMOVED_321");
     }
 
+    [Test]
+    public void LogMaskedAttribute_Replaces_Long_Value_With_DefaultStars_Mask()
+    {
+        // [LogMasked]
+        // 9223372036854775807 -> "***"
+        var customized = new CustomizedMaskedLogs
+        {
+            DefaultMaskedLong = long.MaxValue
+        };
+
+        var evt = DelegatingSink.Execute(customized);
+
+        var sv = (StructureValue)evt.Properties["Customized"];
+        var props = sv.Properties.ToDictionary(p => p.Name, p => p.Value);
+
+        props.ContainsKey("DefaultMaskedLong").ShouldBeTrue();
+        props["DefaultMaskedLong"].LiteralValue().ShouldBe("***");
+    }
+
+    [Test]
+    public void LogMaskedAttribute_Shows_First_NChars_And_Last_NChars_Replaces_Long_Value_With_Default_StarMask()
+    {
+        // [LogMasked(ShowFirst = 3, ShowLast = 3)]
+        // 9223372036854775807 -> "922***807"
+        var customized = new CustomizedMaskedLogs
+        {
+            ShowFirstAndLastThreeAndDefaultMaskLongInTheMiddle = long.MaxValue
+        };
+
+        var evt = DelegatingSink.Execute(customized);
+
+        var sv = (StructureValue)evt.Properties["Customized"];
+        var props = sv.Properties.ToDictionary(p => p.Name, p => p.Value);
+
+        props.ContainsKey("ShowFirstAndLastThreeAndDefaultMaskLongInTheMiddle").ShouldBeTrue();
+        props["ShowFirstAndLastThreeAndDefaultMaskLongInTheMiddle"].LiteralValue().ShouldBe("922***807");
+    }
+
+    [Test]
+    public void LogMaskedAttribute_Replaces_Int_Value_With_DefaultStars_Mask()
+    {
+        // [LogMasked]
+        // 2147483647 -> "***"
+        var customized = new CustomizedMaskedLogs
+        {
+            DefaultMaskedInt = int.MaxValue
+        };
+
+        var evt = DelegatingSink.Execute(customized);
+
+        var sv = (StructureValue)evt.Properties["Customized"];
+        var props = sv.Properties.ToDictionary(p => p.Name, p => p.Value);
+
+        props.ContainsKey("DefaultMaskedInt").ShouldBeTrue();
+        props["DefaultMaskedInt"].LiteralValue().ShouldBe("***");
+    }
+
+    [Test]
+    public void LogMaskedAttribute_Shows_First_NChars_And_Last_NChars_Replaces_Int_Value_With_Default_StarMask_And_PreservedLength()
+    {
+        // [LogMasked(ShowFirst = 3, ShowLast = 3, PreserveLength = true)]
+        // 2147483647 -> "214****647"
+
+        var customized = new CustomizedMaskedLogs
+        {
+            ShowFirstAndLastThreeAndDefaultMaskIntInTheMiddlePreservedLength = int.MaxValue
+        };
+
+        var evt = DelegatingSink.Execute(customized);
+
+        var sv = (StructureValue)evt.Properties["Customized"];
+        var props = sv.Properties.ToDictionary(p => p.Name, p => p.Value);
+
+        props.ContainsKey("ShowFirstAndLastThreeAndDefaultMaskIntInTheMiddlePreservedLength").ShouldBeTrue();
+        props["ShowFirstAndLastThreeAndDefaultMaskIntInTheMiddlePreservedLength"].LiteralValue().ShouldBe("214****647");
+    }
+
+
     [Test]
     public void LogMaskedAttribute_Nullify_Bool_Property()
     {
diff --git a/src/Destructurama.Attributed/Attributed/LogMaskedAttribute.cs b/src/Destructurama.Attributed/Attributed/LogMaskedAttribute.cs
index 4f61694..6caa70a 100644
--- a/src/Destructurama.Attributed/Attributed/LogMaskedAttribute.cs
+++ b/src/Destructurama.Attributed/Attributed/LogMaskedAttribute.cs
@@ -119,7 +119,10 @@ private LogEventPropertyValue CreateValue(object? value)
         {
             IEnumerable<string> strings => new SequenceValue(strings.Select(s => new ScalarValue(FormatMaskedValue(s)))),
             string s => new ScalarValue(FormatMaskedValue(s)),
-            _ => ScalarValue.Null
+            long l => new ScalarValue(FormatMaskedValue(l.ToString())),
+            int i => new ScalarValue(FormatMaskedValue(i.ToString())),
+            Guid g => new ScalarValue(FormatMaskedValue(g.ToString())),
+            _ => ScalarValue.Null,
         };
     }
 }