diff --git a/src/GregsStack.InputSimulatorStandard/InputBuilder.cs b/src/GregsStack.InputSimulatorStandard/InputBuilder.cs
index 7f093e3..3c4b4c5 100644
--- a/src/GregsStack.InputSimulatorStandard/InputBuilder.cs
+++ b/src/GregsStack.InputSimulatorStandard/InputBuilder.cs
@@ -20,6 +20,7 @@ internal class InputBuilder : IEnumerable<Input>
 
         private static readonly IReadOnlyList<VirtualKeyCode> ExtendedKeys = new List<VirtualKeyCode>
         {
+            VirtualKeyCode.NUMPAD_RETURN,
             VirtualKeyCode.MENU,
             VirtualKeyCode.RMENU,
             VirtualKeyCode.CONTROL,
@@ -87,7 +88,7 @@ public InputBuilder()
         /// <returns>true if the key code is an extended key; otherwise, false.</returns>
         /// <remarks>
         /// The extended keys consist of the ALT and CTRL keys on the right-hand side of the keyboard; the INS, DEL, HOME, END, PAGE UP, PAGE DOWN, and arrow keys in the clusters to the left of the numeric keypad; the NUM LOCK key; the BREAK (CTRL+PAUSE) key; the PRINT SCRN key; and the divide (/) and ENTER keys in the numeric keypad.
-        /// 
+        ///
         /// See http://msdn.microsoft.com/en-us/library/ms646267(v=vs.85).aspx Section "Extended-Key Flag"
         /// </remarks>
         public static bool IsExtendedKey(VirtualKeyCode keyCode) => ExtendedKeys.Contains(keyCode);
@@ -210,7 +211,7 @@ public InputBuilder AddCharacter(char character)
 
             // Handle extended keys:
             // If the scan code is preceded by a prefix byte that has the value 0xE0 (224),
-            // we need to include the KEYEVENTF_EXTENDEDKEY flag in the Flags property. 
+            // we need to include the KEYEVENTF_EXTENDEDKEY flag in the Flags property.
             if ((scanCode & 0xFF00) == 0xE000)
             {
                 down.Data.Keyboard.Flags |= (uint)KeyboardFlag.ExtendedKey;
diff --git a/src/GregsStack.InputSimulatorStandard/Native/VirtualKeyCode.cs b/src/GregsStack.InputSimulatorStandard/Native/VirtualKeyCode.cs
index e880afc..f2f78ec 100644
--- a/src/GregsStack.InputSimulatorStandard/Native/VirtualKeyCode.cs
+++ b/src/GregsStack.InputSimulatorStandard/Native/VirtualKeyCode.cs
@@ -1,7 +1,7 @@
 namespace GregsStack.InputSimulatorStandard.Native
 {
     /// <summary>
-    /// The list of virtual key codes (see: http://msdn.microsoft.com/en-us/library/ms645540(VS.85).aspx)
+    /// The list of virtual key codes (see: https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes)
     /// </summary>
     public enum VirtualKeyCode
     {
@@ -59,6 +59,11 @@ public enum VirtualKeyCode
         /// </summary>
         RETURN = 0x0D,
 
+        /// <summary>
+        /// Numeric keypad ENTER key
+        /// </summary>
+        NUMPAD_RETURN = 0x0D,
+
         // 0x0E - 0x0F : Undefined
 
         /// <summary>
@@ -785,7 +790,7 @@ public enum VirtualKeyCode
         //
 
         /// <summary>
-        /// Used for miscellaneous characters; it can vary by keyboard. Windows 2000/XP: For the US standard keyboard, the ';:' key 
+        /// Used for miscellaneous characters; it can vary by keyboard. Windows 2000/XP: For the US standard keyboard, the ';:' key
         /// </summary>
         OEM_1 = 0xBA,
 
@@ -810,12 +815,12 @@ public enum VirtualKeyCode
         OEM_PERIOD = 0xBE,
 
         /// <summary>
-        /// Used for miscellaneous characters; it can vary by keyboard. Windows 2000/XP: For the US standard keyboard, the '/?' key 
+        /// Used for miscellaneous characters; it can vary by keyboard. Windows 2000/XP: For the US standard keyboard, the '/?' key
         /// </summary>
         OEM_2 = 0xBF,
 
         /// <summary>
-        /// Used for miscellaneous characters; it can vary by keyboard. Windows 2000/XP: For the US standard keyboard, the '`~' key 
+        /// Used for miscellaneous characters; it can vary by keyboard. Windows 2000/XP: For the US standard keyboard, the '`~' key
         /// </summary>
         OEM_3 = 0xC0,
 
diff --git a/tests/GregsStack.InputSimulatorStandard.Tests/InputBuilderTests.cs b/tests/GregsStack.InputSimulatorStandard.Tests/InputBuilderTests.cs
index 2d1d017..57b922d 100644
--- a/tests/GregsStack.InputSimulatorStandard.Tests/InputBuilderTests.cs
+++ b/tests/GregsStack.InputSimulatorStandard.Tests/InputBuilderTests.cs
@@ -28,6 +28,7 @@ public void ReturnsIEnumerator()
         public class IsExtendedKeyMethod : InputBuilderTests
         {
             [Theory]
+            [InlineData(VirtualKeyCode.NUMPAD_RETURN)]
             [InlineData(VirtualKeyCode.MENU)]
             [InlineData(VirtualKeyCode.RMENU)]
             [InlineData(VirtualKeyCode.CONTROL)]
diff --git a/tests/GregsStack.InputSimulatorStandard.Tests/InputSimulatorExamples.cs b/tests/GregsStack.InputSimulatorStandard.Tests/InputSimulatorExamples.cs
index a7d5441..d56fb5a 100644
--- a/tests/GregsStack.InputSimulatorStandard.Tests/InputSimulatorExamples.cs
+++ b/tests/GregsStack.InputSimulatorStandard.Tests/InputSimulatorExamples.cs
@@ -22,7 +22,7 @@ public void SayHello()
                .Sleep(1000)
                .TextEntry("notepad")
                .Sleep(1000)
-               .KeyPress(VirtualKeyCode.RETURN)
+               .KeyPress(VirtualKeyCode.NUMPAD_RETURN)
                .Sleep(1000)
                .TextEntry("These are your orders if you choose to accept them...")
                .TextEntry("This message will self destruct in 5 seconds.")