diff --git a/polymer/eduke32/source/astub.c b/polymer/eduke32/source/astub.c
index bec489f0a..20ac19186 100644
--- a/polymer/eduke32/source/astub.c
+++ b/polymer/eduke32/source/astub.c
@@ -9293,6 +9293,12 @@ static void SaveInHistory(const char *commandstr)
 {
     int32_t i, idx, dosave=1;
 
+    // If running with osdtryscript=1, we could receive e.g.
+    //  "// this file is automatically generated by Mapster32"
+    // from m32_config.cfg here.
+    if (!Bstrncmp(commandstr, "//", 2))
+        return;
+
     for (i=1; i<=4; i++)
     {
         idx = (scripthistend-i)&(SCRIPTHISTSIZ-1);