diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 855535b..7e02168 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -879,6 +879,9 @@
 
     @Override
     protected void onStart() {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.NO_OVERVIEW_EVENT_TAG, "Launcher.onStart");
+        }
         RaceConditionTracker.onEvent(ON_START_EVT, ENTER);
         super.onStart();
         if (mLauncherCallbacks != null) {
diff --git a/src/com/android/launcher3/testing/TestProtocol.java b/src/com/android/launcher3/testing/TestProtocol.java
index 99efb22..02e6bbd 100644
--- a/src/com/android/launcher3/testing/TestProtocol.java
+++ b/src/com/android/launcher3/testing/TestProtocol.java
@@ -72,4 +72,5 @@
     public static final String NO_DRAG_TAG = "b/133009122";
     public static final String NO_START_TAG = "b/132900132";
     public static final String NO_START_TASK_TAG = "b/133765434";
+    public static final String NO_OVERVIEW_EVENT_TAG = "b/134532571";
 }