diff --git a/platform/diff-impl/src/com/intellij/diff/applications/DiffApplication.java b/platform/diff-impl/src/com/intellij/diff/applications/DiffApplication.java
index 8c61691953bd..3492e9a2349b 100644
--- a/platform/diff-impl/src/com/intellij/diff/applications/DiffApplication.java
+++ b/platform/diff-impl/src/com/intellij/diff/applications/DiffApplication.java
@@ -18,7 +18,10 @@ package com.intellij.diff.applications;
 import com.intellij.diff.DiffDialogHints;
 import com.intellij.diff.DiffManagerEx;
 import com.intellij.diff.DiffRequestFactory;
+import com.intellij.diff.chains.SimpleDiffRequestChain;
 import com.intellij.diff.requests.DiffRequest;
+import com.intellij.diff.util.DiffPlaces;
+import com.intellij.diff.util.DiffUserDataKeys;
 import com.intellij.openapi.application.ApplicationNamesInfo;
 import com.intellij.openapi.diff.DiffBundle;
 import com.intellij.openapi.project.Project;
@@ -62,7 +65,10 @@ public class DiffApplication extends DiffApplicationBase {
       request = DiffRequestFactory.getInstance().createFromFiles(project, files.get(0), files.get(1));
     }
 
+    SimpleDiffRequestChain chain = new SimpleDiffRequestChain(request);
+    chain.putUserData(DiffUserDataKeys.PLACE, DiffPlaces.EXTERNAL);
+
     DiffDialogHints dialogHints = project != null ? DiffDialogHints.DEFAULT : DiffDialogHints.MODAL;
-    DiffManagerEx.getInstance().showDiffBuiltin(project, request, dialogHints);
+    DiffManagerEx.getInstance().showDiffBuiltin(project, chain, dialogHints);
   }
 }
diff --git a/platform/diff-impl/src/com/intellij/diff/util/DiffPlaces.java b/platform/diff-impl/src/com/intellij/diff/util/DiffPlaces.java
index 2728098c7135..eee6a7ce7b5b 100644
--- a/platform/diff-impl/src/com/intellij/diff/util/DiffPlaces.java
+++ b/platform/diff-impl/src/com/intellij/diff/util/DiffPlaces.java
@@ -22,4 +22,5 @@ public interface DiffPlaces {
   String TESTS_FAILED_ASSERTIONS = "TestsFiledAssertions";
   String MERGE = "Merge";
   String DIR_DIFF = "DirDiff";
+  String EXTERNAL = "External";
 }