diff --git a/source/games/duke/src/funct.h b/source/games/duke/src/funct.h
index 83d4bbc27..64b9199f6 100644
--- a/source/games/duke/src/funct.h
+++ b/source/games/duke/src/funct.h
@@ -227,7 +227,6 @@ void PlayerColorChanged(void);
 bool movementBlocked(player_struct *p);
 void loadcons();
 void recordoldspritepos();
-void FixMapinfo(); 
 
 int* animateptr(int i);
 
diff --git a/source/games/duke/src/game.cpp b/source/games/duke/src/game.cpp
index 8e580c9f0..da5c038cf 100644
--- a/source/games/duke/src/game.cpp
+++ b/source/games/duke/src/game.cpp
@@ -325,7 +325,6 @@ void GameInterface::app_init()
 	screenpeek = myconnectindex;
 
 	LoadDefinitions();
-	FixMapinfo();	// Add some corrections. Can only be done after .def has been parsed.
 	fi.InitFonts();
 	SetTileNames();
 	TileFiles.SetBackup();
diff --git a/source/games/duke/src/gamedef.cpp b/source/games/duke/src/gamedef.cpp
index 9d018b8fb..51c912959 100644
--- a/source/games/duke/src/gamedef.cpp
+++ b/source/games/duke/src/gamedef.cpp
@@ -3230,14 +3230,11 @@ void loadcons()
 	S_WorldTourMappingsForOldSounds(); // create a sound mapping for World Tour.
 	S_CacheAllSounds();
 	comp.setmusic();
-}
 
-void FixMapinfo()
-{
 	// RR must link the last map of E1 to the first map of E2.
-	for (auto& map : mapList)
+	if (isRR()) for (auto& map : mapList)
 	{
-		if (isRR() && map->cluster == 1) 
+		if (map->cluster == 1) 
 		{
 			if (!FindMapByIndexOnly(map->cluster, map->mapindex + 1))
 			{