1 files changed, 2 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 6d07240..3f65266 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,8 @@ OBJ != find -type f -name '*.c' | sed 's/\.c$$/.o/'
 DEBUG = 0
 GDB != which gf2 2> /dev/null || which gdb
 
-CFLAGS_1 = -g3 -fsanitize=undefined
+CFLAGS_0  = -DNDEBUG
+CFLAGS_1  = -g3 -fsanitize=undefined
 LDFLAGS_1 = -g3 -fsanitize=undefined
 LDFLAGS_0 = -Os -s