diff --git a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java
index ccdb81a65173..029b12d3e423 100644
--- a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java
+++ b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/ChangeMethodSignatureFromUsageFix.java
@@ -155,6 +155,7 @@ public class ChangeMethodSignatureFromUsageFix implements IntentionAction, HighP
     for (PsiExpression expression : myExpressions) {
       if (!expression.isValid()) return false;
     }
+    if (!mySubstitutor.isValid()) return false;
 
     myNewParametersInfo = getNewParametersInfo(myExpressions, myTargetMethod, mySubstitutor);
     if (myNewParametersInfo == null || formatTypesList(myNewParametersInfo, myContext) == null) return false;