diff --git a/platform/diff-impl/src/com/intellij/diff/actions/ShowStandaloneDiffAction.kt b/platform/diff-impl/src/com/intellij/diff/actions/ShowStandaloneDiffAction.kt
index 101b8fb9982b..25a8b252ce5e 100644
--- a/platform/diff-impl/src/com/intellij/diff/actions/ShowStandaloneDiffAction.kt
+++ b/platform/diff-impl/src/com/intellij/diff/actions/ShowStandaloneDiffAction.kt
@@ -20,6 +20,10 @@ class ShowStandaloneDiffAction : ExtendableAction(EP_NAME), DumbAware {
       "com.intellij.diff.actions.ShowStandaloneDiffAction.ExtensionProvider")
   }
 
+  init {
+    isEnabledInModalContext = true
+  }
+
   override fun commonUpdate(e: AnActionEvent) {
     val project = e.project