diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 6118b31f8..c45c50eac 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -2745,6 +2745,9 @@ void C_InitQuotes(void)
 
 LUNATIC_EXTERN void C_SetCfgName(const char *cfgname)
 {
+    if (Bstrcmp(g_setupFileName, cfgname) == 0) // no need to do anything if name is the same
+        return;
+
     char temp[BMAX_PATH];
     struct Bstat st;