diff --git a/platform/platform-impl/src/com/intellij/openapi/vcs/changes/actions/migrate/MigrateDiffTool.java b/platform/platform-impl/src/com/intellij/openapi/vcs/changes/actions/migrate/MigrateDiffTool.java
index f170ecd1b102..948d748b2887 100644
--- a/platform/platform-impl/src/com/intellij/openapi/vcs/changes/actions/migrate/MigrateDiffTool.java
+++ b/platform/platform-impl/src/com/intellij/openapi/vcs/changes/actions/migrate/MigrateDiffTool.java
@@ -69,8 +69,7 @@ public class MigrateDiffTool implements DiffTool {
   @Override
   public boolean canShow(DiffRequest request) {
     if (request instanceof MergeRequest) return false;
-    if (request.getContents().length != 2) return false;
-    return true;
+    return request.getContents().length == 2 || request.getContents().length == 3;
   }
 
   @Override