diff --git a/test_drivers/smoke_test/Makefile b/test_drivers/smoke_test/Makefile
index de811dd..11ec8e7 100644
--- a/test_drivers/smoke_test/Makefile
+++ b/test_drivers/smoke_test/Makefile
@@ -1,5 +1,5 @@
 CC = g++
-CFLAGS = -g
+CFLAGS = -g -Wall
 
 smoketest: test.cpp ../../source/utf8.h
 	$(CC) $(CFLAGS) test.cpp -osmoketest