diff --git a/plugins/groovy/src/org/jetbrains/plugins/groovy/refactoring/introduce/field/GrIntroduceFieldDialog.java b/plugins/groovy/src/org/jetbrains/plugins/groovy/refactoring/introduce/field/GrIntroduceFieldDialog.java
index 5dafb7fc3a8f..e20ab324720a 100644
--- a/plugins/groovy/src/org/jetbrains/plugins/groovy/refactoring/introduce/field/GrIntroduceFieldDialog.java
+++ b/plugins/groovy/src/org/jetbrains/plugins/groovy/refactoring/introduce/field/GrIntroduceFieldDialog.java
@@ -20,7 +20,9 @@ import com.intellij.openapi.util.Ref;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiMethod;
+import com.intellij.psi.PsiParameter;
 import com.intellij.psi.PsiType;
+import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.refactoring.RefactoringBundle;
 import com.intellij.refactoring.introduceField.IntroduceFieldHandler;
 import com.intellij.refactoring.ui.NameSuggestionsField;
@@ -339,6 +341,7 @@ public class GrIntroduceFieldDialog extends DialogWrapper implements GrIntroduce
     }
 
     final Ref<Boolean> ref = new Ref<Boolean>(Boolean.TRUE);
+    final GrExpression finalExpression = expression;
     expression.accept(new GroovyRecursiveElementVisitor() {
       @Override
       public void visitReferenceExpression(GrReferenceExpression refExpr) {
@@ -348,6 +351,10 @@ public class GrIntroduceFieldDialog extends DialogWrapper implements GrIntroduce
         if (resolved instanceof GrField && scope.getManager().areElementsEquivalent(scope, ((GrField)resolved).getContainingClass())) {
           return;
         }
+        if (resolved instanceof PsiParameter &&
+            PsiTreeUtil.isAncestor(finalExpression, ((PsiParameter)resolved).getDeclarationScope(), false)) {
+          return;
+        }
         ref.set(Boolean.FALSE);
       }
     });