diff --git a/JsonApiDotNetCore.sln.DotSettings b/JsonApiDotNetCore.sln.DotSettings
index e340302b6..fab36be3d 100644
--- a/JsonApiDotNetCore.sln.DotSettings
+++ b/JsonApiDotNetCore.sln.DotSettings
@@ -37,6 +37,7 @@
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=ConvertNullableToShortForm/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=ConvertToConstant_002EGlobal/@EntryIndexedValue">SUGGESTION</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=ConvertToConstant_002ELocal/@EntryIndexedValue">SUGGESTION</s:String>
+	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=ConvertToExtensionBlock/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=ConvertToLocalFunction/@EntryIndexedValue">HINT</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=DoubleNegationOperator/@EntryIndexedValue">WARNING</s:String>
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=EnforceDoWhileStatementBraces/@EntryIndexedValue">WARNING</s:String>