diff --git a/src/ai/api/ai_types.hpp b/src/ai/api/ai_types.hpp
--- a/src/ai/api/ai_types.hpp
+++ b/src/ai/api/ai_types.hpp
@@ -79,7 +79,7 @@
 
 #include "../../core/overflowsafe_type.hpp"
 #include "../../company_type.h"
-#include "../../script/fake_squirrel_types.hpp"
+#include <squirrel.h>
 
 /* Define all types here, so we don't have to include the whole _type.h maze */
 typedef uint BridgeType;     //!< Internal name, not of any use for you.