diff --git a/proguard.flags b/proguard.flags
index 44f6ccd..cb04900 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -21,6 +21,7 @@
 -keepclassmembers class * {
   @com.google.common.annotations.VisibleForTesting *;
 }
+-keep class com.android.messaging.ui.contact.* { *; }
 
 # Keep methods that have the @VisibleForAnimation annotation
 -keep @interface com.android.messaging.annotation.VisibleForAnimation