diff --git a/src/Features/CSharp/Portable/IntroduceVariable/CSharpIntroduceVariableService_IntroduceLocal.cs b/src/Features/CSharp/Portable/IntroduceVariable/CSharpIntroduceVariableService_IntroduceLocal.cs
index 74eda19b3fd06252e9f2451419844fb69dcc0e37..bd21cc37d1426c0275240dc6569dbef5b3f898e2 100644
--- a/src/Features/CSharp/Portable/IntroduceVariable/CSharpIntroduceVariableService_IntroduceLocal.cs
+++ b/src/Features/CSharp/Portable/IntroduceVariable/CSharpIntroduceVariableService_IntroduceLocal.cs
@@ -82,7 +82,7 @@ internal partial class CSharpIntroduceVariableService
                                                    .OfType<LambdaExpressionSyntax>()
                                                    .ToSet();
 
-            var parentLambda = expression.AncestorsAndSelf().FirstOrDefault(lambdas.Contains);
+            var parentLambda = GetParentLambda(expression, lambdas);
 
             if (parentLambda != null)
             {