diff --git a/polymer/eduke32/source/config.c b/polymer/eduke32/source/config.c
index 89509bc64..b1df4eb6a 100644
--- a/polymer/eduke32/source/config.c
+++ b/polymer/eduke32/source/config.c
@@ -622,7 +622,11 @@ int32_t CONFIG_ReadSetup(void)
 // #endif
 
         if (g_grpNamePtr == NULL && g_usingAddon == 0)
+        {
             SCRIPT_GetStringPtr(ud.config.scripthandle, "Setup","SelectedGRP",&g_grpNamePtr);
+            if (g_grpNamePtr && !Bstrlen(g_grpNamePtr))
+                g_grpNamePtr = dup_filename(G_DefaultGrpFile());
+        }
 
         if (!NAM)
         {