diff --git a/X10D.ruleset b/X10D.ruleset
index f94a881..221c16e 100644
--- a/X10D.ruleset
+++ b/X10D.ruleset
@@ -239,6 +239,7 @@
   </Rules>
   <Rules AnalyzerId="Roslynator.CSharp.Analyzers" RuleNamespace="Roslynator.CSharp.Analyzers">
     <Rule Id="RCS1010" Action="Warning" />
+    <Rule Id="RCS1177" Action="Warning" />
   </Rules>
   <Rules AnalyzerId="StyleCop.Analyzers" RuleNamespace="StyleCop.Analyzers">
     <Rule Id="SA1121" Action="None" />