diff --git a/proguard.flags b/proguard.flags
index 76b033c..759f2d4 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -23,7 +23,7 @@
 }
 
 # Keep methods that have the @VisibleForAnimation annotation
--keep interface com.android.messaging.annotation.VisibleForAnimation
+-keep @interface com.android.messaging.annotation.VisibleForAnimation
 -keepclassmembers class * {
   @com.android.messaging.annotation.VisibleForAnimation *;
 }