diff --git a/src/windows/vid.c b/src/windows/vid.c
index 5e8dbe24..138933e7 100644
--- a/src/windows/vid.c
+++ b/src/windows/vid.c
@@ -290,6 +290,7 @@ VID_LoadRefresh(char *name)
 	ri.Cmd_ExecuteText = Cbuf_ExecuteText;
 	ri.Con_Printf = VID_Printf;
 	ri.Sys_Error = VID_Error;
+	ri.Sys_Mkdir = Sys_Mkdir;
 	ri.FS_LoadFile = FS_LoadFile;
 	ri.FS_FreeFile = FS_FreeFile;
 	ri.FS_Gamedir = FS_Gamedir;