1 files changed, 5 insertions, 0 deletions
diff --git a/java/com/android/dialer/phonelookup/blockednumber/SystemBlockedNumberPhoneLookup.java b/java/com/android/dialer/phonelookup/blockednumber/SystemBlockedNumberPhoneLookup.java
index d791e9b9e..def1f017d 100644
--- a/java/com/android/dialer/phonelookup/blockednumber/SystemBlockedNumberPhoneLookup.java
+++ b/java/com/android/dialer/phonelookup/blockednumber/SystemBlockedNumberPhoneLookup.java
@@ -181,4 +181,9 @@ public class SystemBlockedNumberPhoneLookup implements PhoneLookup<SystemBlocked
             true, // BlockedNumbers notifies on the item
             markDirtyObserver);
   }
+
+  @Override
+  public void unregisterContentObservers(Context appContext) {
+    appContext.getContentResolver().unregisterContentObserver(markDirtyObserver);
+  }
 }