diff --git a/src/EditorFeatures/Test/Diagnostics/IDEDiagnosticIDConfigurationTests.cs b/src/EditorFeatures/Test/Diagnostics/IDEDiagnosticIDConfigurationTests.cs
index 74099879e7d68de0ced56fc66cd6b0454f831cd6..a789f99d7f1e3fe46fc1908e48b9c33e8cd025b2 100644
--- a/src/EditorFeatures/Test/Diagnostics/IDEDiagnosticIDConfigurationTests.cs
+++ b/src/EditorFeatures/Test/Diagnostics/IDEDiagnosticIDConfigurationTests.cs
@@ -365,6 +365,9 @@ public void CSharp_VerifyIDEDiagnosticSeveritiesAreConfigurable()
 # IDE0073
 dotnet_diagnostic.IDE0073.severity = %value%
 
+# IDE0074
+dotnet_style_prefer_compound_assignment = true:suggestion
+
 # IDE1005
 csharp_style_conditional_delegate_call = true:suggestion
 
@@ -862,6 +865,9 @@ public void CSharp_VerifyIDECodeStyleOptionsAreConfigurable()
 # IDE0073, FileHeaderTemplate
 file_header_template = unset
 
+# IDE0074, PreferCompoundAssignment
+dotnet_style_prefer_compound_assignment = true:suggestion
+
 # IDE1005, PreferConditionalDelegateCall
 csharp_style_conditional_delegate_call = true:suggestion