diff --git a/src/misn_lua.c b/src/misn_lua.c
index bc83eb4..af42aab 100644
--- a/src/misn_lua.c
+++ b/src/misn_lua.c
@@ -17,8 +17,8 @@
 #define MISN_DEBUG(str, args...) (fprintf(stdout, "Mission '%s': "str"\n", \
       cur_mission->data->name, ## args))
 
-#define MIN_ARGS(n) { \
-  if(lua_gettop(L) < n) \
+#define MIN_ARGS(n) \
+if(lua_gettop(L) < n) { \
   MISN_DEBUG("[%s] Too few arguments", __func__); \
   return 0; \
 }