diff --git a/Android.mk b/Android.mk
index c8a53d2..0543b42 100644
--- a/Android.mk
+++ b/Android.mk
@@ -33,7 +33,8 @@
     $(call all-java-files-under, src) \
     $(call all-java-files-under, src_config) \
     $(call all-java-files-under, src_flags) \
-    $(call all-proto-files-under, protos)
+    $(call all-proto-files-under, protos) \
+    $(call all-proto-files-under, proto_overrides)
 
 LOCAL_RESOURCE_DIR := \
     $(LOCAL_PATH)/res \
@@ -42,7 +43,7 @@
 LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
 LOCAL_PROTOC_OPTIMIZE_TYPE := nano
-LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)/protos/
+LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)/protos/ --proto_path=$(LOCAL_PATH)/proto_overrides/
 LOCAL_PROTO_JAVA_OUTPUT_PARAMS := enum_style=java
 
 LOCAL_AAPT_FLAGS := \
@@ -66,10 +67,10 @@
 #
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := $(call all-proto-files-under, protos)
+LOCAL_SRC_FILES := $(call all-proto-files-under, protos) $(call all-proto-files-under, proto_overrides)
 
 LOCAL_PROTOC_OPTIMIZE_TYPE := nano
-LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)/protos/
+LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)/protos/ --proto_path=$(LOCAL_PATH)/proto_overrides/
 LOCAL_PROTO_JAVA_OUTPUT_PARAMS := enum_style=java
 
 LOCAL_MODULE_TAGS := optional