diff --git a/Sources/XcodeProj/Extensions/AEXML+XcodeFormat.swift b/Sources/XcodeProj/Extensions/AEXML+XcodeFormat.swift
index 6ac2cbc08..88bd5e84b 100644
--- a/Sources/XcodeProj/Extensions/AEXML+XcodeFormat.swift
+++ b/Sources/XcodeProj/Extensions/AEXML+XcodeFormat.swift
@@ -35,16 +35,19 @@ let attributesOrder: [String: [String]] = [
         "selectedLauncherIdentifier",
         "customLLDBInitFile",
         "language",
+        "shouldUseLaunchSchemeArgsEnv",
+        "disableMainThreadChecker",
         "region",
         "codeCoverageEnabled",
         "onlyGenerateCoverageForSpecifiedTargets",
-        "shouldUseLaunchSchemeArgsEnv",
     ],
     "LaunchAction": [
         "buildConfiguration",
         "selectedDebuggerIdentifier",
         "selectedLauncherIdentifier",
         "customLLDBInitFile",
+        "disableMainThreadChecker",
+        "disablePerformanceAntipatternChecker",
         "language",
         "region",
         "launchStyle",
diff --git a/Tests/XcodeProjTests/Extensions/AEXML+XcodeFormatTests.swift b/Tests/XcodeProjTests/Extensions/AEXML+XcodeFormatTests.swift
index c7abde562..1df78b7d4 100644
--- a/Tests/XcodeProjTests/Extensions/AEXML+XcodeFormatTests.swift
+++ b/Tests/XcodeProjTests/Extensions/AEXML+XcodeFormatTests.swift
@@ -27,6 +27,8 @@ class AEXML_XcodeFormatTests: XCTestCase {
            buildConfiguration = "Debug"
            selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
            customLLDBInitFile = "$(BAZEL_LLDB_INIT)"
+           disableMainThreadChecker = "YES"
+           disablePerformanceAntipatternChecker = "YES"
            launchStyle = "0"
            allowLocationSimulation = "YES">
         </LaunchAction>
@@ -39,7 +41,8 @@ class AEXML_XcodeFormatTests: XCTestCase {
            buildConfiguration = "Debug"
            selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
            customLLDBInitFile = "$(BAZEL_LLDB_INIT)"
-           shouldUseLaunchSchemeArgsEnv = "YES">
+           shouldUseLaunchSchemeArgsEnv = "YES"
+           disableMainThreadChecker = "YES">
         </TestAction>
         """
 
@@ -76,7 +79,9 @@ class AEXML_XcodeFormatTests: XCTestCase {
                 "selectedLauncherIdentifier": "Xcode.DebuggerFoundation.Launcher.LLDB",
                 "customLLDBInitFile": "$(BAZEL_LLDB_INIT)",
                 "launchStyle": "0",
-                "allowLocationSimulation": "YES"
+                "allowLocationSimulation": "YES",
+                "disableMainThreadChecker": "YES",
+                "disablePerformanceAntipatternChecker": "YES",
             ]
         )
     }
@@ -86,6 +91,8 @@ class AEXML_XcodeFormatTests: XCTestCase {
             expectedXML: expectedLaunchActionXml.cleaned,
             childName: "LaunchAction",
             attributes: [
+                "disableMainThreadChecker": "YES",
+                "disablePerformanceAntipatternChecker": "YES",
                 "customLLDBInitFile": "$(BAZEL_LLDB_INIT)",
                 "allowLocationSimulation": "YES",
                 "buildConfiguration": "Debug",
@@ -103,7 +110,8 @@ class AEXML_XcodeFormatTests: XCTestCase {
                 "buildConfiguration": "Debug",
                 "customLLDBInitFile": "$(BAZEL_LLDB_INIT)",
                 "selectedLauncherIdentifier": "Xcode.DebuggerFoundation.Launcher.LLDB",
-                "shouldUseLaunchSchemeArgsEnv": "YES"
+                "shouldUseLaunchSchemeArgsEnv": "YES",
+                "disableMainThreadChecker": "YES",
             ]
         )
     }
@@ -113,6 +121,7 @@ class AEXML_XcodeFormatTests: XCTestCase {
             expectedXML: expectedTestActionXml.cleaned,
             childName: "TestAction",
             attributes: [
+                "disableMainThreadChecker": "YES",
                 "shouldUseLaunchSchemeArgsEnv": "YES",
                 "buildConfiguration": "Debug",
                 "customLLDBInitFile": "$(BAZEL_LLDB_INIT)",