diff --git a/opengl/tests/swapinterval/Android.mk b/opengl/tests/swapinterval/Android.mk
index b0b15eb..2a2c12f 100644
--- a/opengl/tests/swapinterval/Android.mk
+++ b/opengl/tests/swapinterval/Android.mk
@@ -4,6 +4,8 @@
 LOCAL_SRC_FILES:= \
 	swapinterval.cpp
 
+LOCAL_CFLAGS := -Wall -Werror
+
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
 	libutils \