diff --git a/consumer-rules.pro b/consumer-rules.pro
index a7470c6..18bf9dc 100644
--- a/consumer-rules.pro
+++ b/consumer-rules.pro
@@ -1,7 +1,7 @@
--keepclassmembers class ** implements com.hack.opensdk.IPackageObserver$Install {
+1-keepclassmembers class ** implements com.hack.opensdk.IPackageObserver$Install {
     public void onPackageInstalled(...);
 }
 
 -keepclassmembers class ** implements com.hack.opensdk.IPackageObserver$Delete {
     public void onPackageDeleted(...);
-}
\ No newline at end of file
+}