diff --git a/Android.mk b/Android.mk
index ebf293424..104fa3e57 100644
--- a/Android.mk
+++ b/Android.mk
@@ -30,7 +30,7 @@ LOCAL_STATIC_JAVA_LIBRARIES := android-common
 
 LOCAL_PACKAGE_NAME := Email
 
-LOCAL_PROGUARD_FLAGS := -include $(LOCAL_PATH)/proguard.flags
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
 # The Emma tool analyzes code coverage when running unit tests on the
 # application. This configuration line selects which packages will be analyzed,