diff --git a/public/datamap.h b/public/datamap.h
index c9d340b4..243db5ed 100644
--- a/public/datamap.h
+++ b/public/datamap.h
@@ -202,7 +202,7 @@ extern ISaveRestoreOps *eventFuncs;
 #define DEFINE_OUTPUT( name, outputname )	{ FIELD_CUSTOM, #name, { _offsetof(classNameTypedef, name), 0 }, 1, FTYPEDESC_OUTPUT | FTYPEDESC_SAVE | FTYPEDESC_KEY, outputname, eventFuncs }
 
 // replaces EXPORT table for portability and non-DLL based systems (xbox)
-#define DEFINE_FUNCTION_RAW( function, func_type )			{ FIELD_VOID, nameHolder.GenerateName(#function), { NULL, NULL }, 1, FTYPEDESC_FUNCTIONTABLE, NULL, NULL, (inputfunc_t)(&classNameTypedef::function) }
+#define DEFINE_FUNCTION_RAW( function, func_type )			{ FIELD_VOID, nameHolder.GenerateName(#function), { NULL, NULL }, 1, FTYPEDESC_FUNCTIONTABLE, NULL, NULL, (inputfunc_t)((func_type)(&classNameTypedef::function)) }
 #define DEFINE_FUNCTION( function )			DEFINE_FUNCTION_RAW( function, inputfunc_t )