diff --git a/engines/grim/lua_v2.cpp b/engines/grim/lua_v2.cpp
index 7ab42ce1b3a..232a9ba2721 100644
--- a/engines/grim/lua_v2.cpp
+++ b/engines/grim/lua_v2.cpp
@@ -24,6 +24,7 @@
 #define FORBIDDEN_SYMBOL_EXCEPTION_getcwd
 #define FORBIDDEN_SYMBOL_EXCEPTION_unlink
 #define FORBIDDEN_SYMBOL_EXCEPTION_getwd
+#define FORBIDDEN_SYMBOL_EXCEPTION_mkdir
 
 #include "common/endian.h"