diff --git a/java/com/android/incallui/spam/SpamCallListListener.java b/java/com/android/incallui/spam/SpamCallListListener.java
index fa3dd6e..e7603f0 100644
--- a/java/com/android/incallui/spam/SpamCallListListener.java
+++ b/java/com/android/incallui/spam/SpamCallListListener.java
@@ -455,6 +455,6 @@
   }
 
   static String getNotificationTagForCall(@NonNull DialerCall call) {
-    return NOTIFICATION_TAG_PREFIX + call.getNumber();
+    return NOTIFICATION_TAG_PREFIX + call.getUniqueCallId();
   }
 }