diff --git a/src/version.h b/src/version.h
index 6528c3aea..796e61fdb 100644
--- a/src/version.h
+++ b/src/version.h
@@ -91,14 +91,14 @@ const char *GetVersionString();
 #define SAVEVER 4556
 
 // This is so that derivates can use the same savegame versions without worrying about engine compatibility
-#define GAMESIG "GZDOOM"
-#define BASEWAD "gzdoom.pk3"
+#define GAMESIG "QZDOOM"
+#define BASEWAD "qzdoom.pk3"
 #define OPTIONALWAD "game_support.pk3"
 
 // More stuff that needs to be different for derivatives.
-#define GAMENAME "GZDoom"
-#define WGAMENAME L"GZDoom"
-#define GAMENAMELOWERCASE "gzdoom"
+#define GAMENAME "QZDoom"
+#define WGAMENAME L"QZDoom"
+#define GAMENAMELOWERCASE "qzdoom"
 #define FORUM_URL "http://forum.zdoom.org/"
 #define BUGS_FORUM_URL	"http://forum.zdoom.org/viewforum.php?f=2"