diff --git a/src/d_main.c b/src/d_main.c
index 9014ddd8..298561c2 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -957,7 +957,7 @@ static void InitGameVersion(void)
         // Determine automatically
 
         if (gamemode == shareware || gamemode == registered ||
-            (gamemode == commercial && (gamemission == doom2 || gamemission == pack_chex3v)))
+            (gamemode == commercial && gamemission != pack_tnt && gamemission != pack_plut))
         {
             // original
             gameversion = exe_doom_1_9;