diff --git a/src/com/android/launcher3/views/ActivityContext.java b/src/com/android/launcher3/views/ActivityContext.java
index f7837f5..b6f6223 100644
--- a/src/com/android/launcher3/views/ActivityContext.java
+++ b/src/com/android/launcher3/views/ActivityContext.java
@@ -313,7 +313,7 @@
      */
     default boolean startActivitySafely(
             View v, Intent intent, @Nullable ItemInfo item) {
-
+        Preconditions.assertUIThread();
         Context context = (Context) this;
         if (isAppBlockedForSafeMode() && !PackageManagerHelper.isSystemApp(context, intent)) {
             Toast.makeText(context, R.string.safemode_shortcut_error, Toast.LENGTH_SHORT).show();