diff --git a/src/version.h b/src/version.h
index ed4337e99..ed360d41d 100644
--- a/src/version.h
+++ b/src/version.h
@@ -88,7 +88,7 @@ const char *GetVersionString();
 // This is so that derivates can use the same savegame versions without worrying about engine compatibility
 #define GAMESIG "LZDOOM"
 #define BASEWAD "lzdoom.pk3"
-#define OPTIONALWAD "zd_extra.pk3"
+#define OPTIONALWAD "game_support.pk3"
 
 // More stuff that needs to be different for derivatives.
 #define GAMENAME "LZDoom"
diff --git a/wadsrc_extra/CMakeLists.txt b/wadsrc_extra/CMakeLists.txt
index 57f77a82c..0eacb8a53 100644
--- a/wadsrc_extra/CMakeLists.txt
+++ b/wadsrc_extra/CMakeLists.txt
@@ -1,3 +1,3 @@
 cmake_minimum_required( VERSION 2.8.7 )
 
-add_pk3(zd_extra.pk3 ${CMAKE_CURRENT_SOURCE_DIR}/static)
+add_pk3(game_support.pk3 ${CMAKE_CURRENT_SOURCE_DIR}/static)