diff --git a/platform/platform-impl/src/com/intellij/openapi/diff/impl/external/FrameDiffTool.java b/platform/platform-impl/src/com/intellij/openapi/diff/impl/external/FrameDiffTool.java
index d3f226decfe5..477835c682a2 100644
--- a/platform/platform-impl/src/com/intellij/openapi/diff/impl/external/FrameDiffTool.java
+++ b/platform/platform-impl/src/com/intellij/openapi/diff/impl/external/FrameDiffTool.java
@@ -197,10 +197,8 @@ public class FrameDiffTool implements DiffTool {
     String message = Arrays.equals(bytes1, bytes2)
                      ? DiffBundle.message("diff.contents.are.identical.message.text")
                      : DiffBundle.message("diff.contents.have.differences.only.in.line.separators.message.text");
-    Messages.showInfoMessage(data.getProject(), message, DiffBundle.message("no.differences.dialog.title"));
-    return false;
-    //return Messages.showDialog(data.getProject(), message + "\nShow diff anyway?", "No Differences", new String[]{"Yes", "No"}, 1,
-    //                    Messages.getQuestionIcon()) == 0;
+    return Messages.showYesNoDialog(data.getProject(), message + "\n" + DiffBundle.message("show.diff.anyway.dialog.message"),
+                                    DiffBundle.message("no.differences.dialog.title"), Messages.getQuestionIcon()) == Messages.YES;
   }
 
   public boolean canShow(DiffRequest data) {
diff --git a/platform/platform-resources-en/src/messages/DiffBundle.properties b/platform/platform-resources-en/src/messages/DiffBundle.properties
index e604d4fa37de..4b46af689579 100644
--- a/platform/platform-resources-en/src/messages/DiffBundle.properties
+++ b/platform/platform-resources-en/src/messages/DiffBundle.properties
@@ -54,6 +54,7 @@ select.external.diff.program.dialog.title=Select External Diff Program
 diff.contents.are.identical.message.text=Contents are identical
 diff.contents.have.differences.only.in.line.separators.message.text=Contents have differences only in line separators
 diff.contents.have.differences.only.in.line.separators.or.whitespaces=Contents have differences only in line separators or whitespaces
+show.diff.anyway.dialog.message=Show diff anyway?
 no.differences.dialog.title=No Differences
 merge.dialog.apply.change.action.name=Apply change
 merge.dialog.ignore.change.action.name=Ignore change