diff --git a/adf/libadf/Android.mk b/adf/libadf/Android.mk
index 908aa6c..7df354b 100644
--- a/adf/libadf/Android.mk
+++ b/adf/libadf/Android.mk
@@ -18,6 +18,7 @@
 LOCAL_SRC_FILES := adf.c
 LOCAL_MODULE := libadf
 LOCAL_MODULE_TAGS := optional
+LOCAL_CFLAGS += -Werror
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
 LOCAL_C_INCLUDES += $(LOCAL_EXPORT_C_INCLUDE_DIRS)
 include $(BUILD_STATIC_LIBRARY)
diff --git a/adf/libadf/tests/Android.mk b/adf/libadf/tests/Android.mk
index 93efafa..68e5817 100644
--- a/adf/libadf/tests/Android.mk
+++ b/adf/libadf/tests/Android.mk
@@ -19,4 +19,5 @@
 LOCAL_SRC_FILES := adf_test.cpp
 LOCAL_MODULE := adf-unit-tests
 LOCAL_STATIC_LIBRARIES := libadf
+LOCAL_CFLAGS += -Werror
 include $(BUILD_NATIVE_TEST)
diff --git a/adf/libadfhwc/Android.mk b/adf/libadfhwc/Android.mk
index acea322..898f9c9 100644
--- a/adf/libadfhwc/Android.mk
+++ b/adf/libadfhwc/Android.mk
@@ -19,7 +19,7 @@
 LOCAL_MODULE := libadfhwc
 LOCAL_MODULE_TAGS := optional
 LOCAL_STATIC_LIBRARIES := libadf liblog libutils
-LOCAL_CFLAGS += -DLOG_TAG=\"adfhwc\"
+LOCAL_CFLAGS += -DLOG_TAG=\"adfhwc\" -Werror
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
 LOCAL_C_INCLUDES += $(LOCAL_EXPORT_C_INCLUDE_DIRS)
 include $(BUILD_STATIC_LIBRARY)