diff --git a/src/lisp/Jmk b/src/lisp/Jmk
index 628a33d..3f50e85 100644
--- a/src/lisp/Jmk
+++ b/src/lisp/Jmk
@@ -13,7 +13,7 @@
 archetype(c)
 archetype(asm)
 
-CFLAGS += -Ivendor/luajit/dynasm
+CFLAGS += -Ivendor/luajit/dynasm -Werror
 ASMFLAGS += -felf -Fdwarf
 
 OBJECTS = main.o \