diff --git a/platform/lang-impl/src/com/intellij/refactoring/changeSignature/ChangeSignatureDialogBase.java b/platform/lang-impl/src/com/intellij/refactoring/changeSignature/ChangeSignatureDialogBase.java
index c60afcb98952..1918f34bd4a8 100644
--- a/platform/lang-impl/src/com/intellij/refactoring/changeSignature/ChangeSignatureDialogBase.java
+++ b/platform/lang-impl/src/com/intellij/refactoring/changeSignature/ChangeSignatureDialogBase.java
@@ -377,11 +377,7 @@ public abstract class ChangeSignatureDialogBase<P extends ParameterInfo, M exten
   }
 
   private JComponent createSignaturePanel() {
-    mySignatureArea = new EditorTextField(EditorFactory.getInstance().createDocument(calculateSignature()),
-                                          getProject(),
-                                          getFileType(),
-                                          true,
-                                          false);
+    mySignatureArea = createSignaturePreviewComponent();
     JPanel panel = new JPanel(new BorderLayout());
     panel.setBorder(IdeBorderFactory.createTitledBorder(RefactoringBundle.message("signature.preview.border.title")));
     panel.add(mySignatureArea, BorderLayout.CENTER);
@@ -398,6 +394,14 @@ public abstract class ChangeSignatureDialogBase<P extends ParameterInfo, M exten
     return panel;
   }
 
+  protected EditorTextField createSignaturePreviewComponent() {
+    return new EditorTextField(EditorFactory.getInstance().createDocument(calculateSignature()),
+                               getProject(),
+                               getFileType(),
+                               true,
+                               false);
+  }
+
   protected void updateSignature() {
     if (mySignatureArea == null || myPropagateParamChangesButton == null) return;