diff --git a/source/duke3d/src/grpscan.cpp b/source/duke3d/src/grpscan.cpp
index a786f23ed..05ba91713 100644
--- a/source/duke3d/src/grpscan.cpp
+++ b/source/duke3d/src/grpscan.cpp
@@ -61,6 +61,7 @@ static internalgrpinfo_t const internalgrpfiles[] =
     { "Duke Caribbean: Life's a Beach",        DUKECB_CRC,  22213819, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, NULL, NULL},
     { "Duke Caribbean: Life's a Beach",        (int32_t) 0x65B5F690, 22397273, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, "VACATION.CON", NULL},
     { "Duke: Nuclear Winter",                  DUKENW_CRC,  16169365, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, "NWINTER.CON", NULL},
+    { "Duke: Nuclear Winter Demo",             (int32_t) 0xC7EFBFA9,  10965909, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, "NWINTER.CON", NULL},
     { "Duke!ZONE II (1.3D)",                   DZ2_13_CRC,  26135388, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE13_CRC, "DZ-GAME.CON", NULL},
     { "Duke!ZONE II",                          DZ2_PP_CRC,  44100411, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, "DZ-GAME.CON", NULL},
     { "Duke!ZONE II",                          (int32_t) 0x1E9516F1,  3186656, GAMEFLAG_DUKE|GAMEFLAG_ADDON, DUKE15_CRC, "DZ-GAME.CON", NULL},