diff --git a/src/lluadef.h b/src/lluadef.h
index a3e8506..e2cb88d 100644
--- a/src/lluadef.h
+++ b/src/lluadef.h
@@ -20,8 +20,9 @@
     return 0; \
   }
 #else /* DEBUG. */
-#define LLUA_DEBUG(str, args...) do {;} while(0)
-#define LLUA_MIN_ARGS(n)         do {;} while(0)
+#define LLUA_DEBUG(str, args...)  do {;} while(0)
+#define LLUA_MIN_ARGS(n)          do {;} while(0)
+#define LLUA_INVALID_PARAMETER()  do {;} while(0)
 #endif /* DEBUG. */
 
 /* Comfortability macros. */