diff --git a/doomgeneric/d_iwad.c b/doomgeneric/d_iwad.c
index 9da6337..508cc61 100644
--- a/doomgeneric/d_iwad.c
+++ b/doomgeneric/d_iwad.c
@@ -38,7 +38,7 @@ static const iwad_t iwads[] =
     { "plutonia.wad", pack_plut, commercial, "Final Doom: Plutonia Experiment" },
     { "tnt.wad",      pack_tnt,  commercial, "Final Doom: TNT: Evilution" },
     { "doom.wad",     doom,      retail,     "Doom" },
-    { "DOOM1.WAD",    doom,      shareware,  "Doom Shareware" },
+    { "doom1.wad",    doom,      shareware,  "Doom Shareware" },
     { "chex.wad",     pack_chex, shareware,  "Chex Quest" },
     { "hacx.wad",     pack_hacx, commercial, "Hacx" },
     { "freedm.wad",   doom2,     commercial, "FreeDM" },