diff --git a/core/java.mk b/core/java.mk
index e564db2516..bde81db3de 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -127,7 +127,7 @@ $(foreach java,$(aidl_java_sources), \
 
 $(aidl_java_sources) : $(LOCAL_ADDITIONAL_DEPENDENCIES) $(aidl_preprocess_import)
 
-$(aidl_java_sources): PRIVATE_AIDL_FLAGS := -b $(addprefix -p,$(aidl_preprocess_import)) -I$(LOCAL_PATH) -I$(LOCAL_PATH)/src $(addprefix -I,$(LOCAL_AIDL_INCLUDES))
+$(aidl_java_sources): PRIVATE_AIDL_FLAGS := $(addprefix -p,$(aidl_preprocess_import)) -I$(LOCAL_PATH) -I$(LOCAL_PATH)/src $(addprefix -I,$(LOCAL_AIDL_INCLUDES))
 $(aidl_java_sources): PRIVATE_MODULE := $(LOCAL_MODULE)
 
 endif