diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 915b882d46a59..b2f6cd2fd9000 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -1042,6 +1042,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     }
 
     private void interceptBackKeyDown() {
+        MetricsLogger.count(mContext, "key_back_down", 1);
         // Reset back key state for long press
         mBackKeyHandled = false;