diff --git a/opengl/tests/linetex/Android.mk b/opengl/tests/linetex/Android.mk
index 968756a..3df0a0f 100644
--- a/opengl/tests/linetex/Android.mk
+++ b/opengl/tests/linetex/Android.mk
@@ -4,6 +4,8 @@
 LOCAL_SRC_FILES:= \
 	linetex.cpp
 
+LOCAL_CFLAGS := -Wall -Werror
+
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
     libEGL \