diff --git a/Android.mk b/Android.mk
index 725c89d..e2ed18b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -75,8 +75,6 @@
     LOCAL_PROGUARD_FLAG_FILES += proguard-release.flags
 endif
 
-LOCAL_JACK_ENABLED := disabled
-
 LOCAL_PACKAGE_NAME := messaging
 
 LOCAL_CERTIFICATE := platform
diff --git a/proguard.flags b/proguard.flags
index 759f2d4..76b033c 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 *;
 }
diff --git a/tests/Android.mk b/tests/Android.mk
index f3f4752..3bfdb9a 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -24,8 +24,6 @@
 
 LOCAL_INSTRUMENTATION_FOR := messaging
 
-LOCAL_JACK_ENABLED := disabled
-
 # Matching ../Android.mk
 LOCAL_SDK_VERSION := current