diff -r 03684c667664 -r f14d16c5277a hedgewars/ArgParsers.inc
--- a/hedgewars/ArgParsers.inc	Tue Dec 25 02:30:00 2012 +0100
+++ b/hedgewars/ArgParsers.inc	Thu Dec 27 12:31:23 2012 +0400
@@ -255,9 +255,9 @@
         if isValid then
             begin
             parseParameter(cmd, arg, tmpInt);
-            newSyntax += cmd + ' ';
+            newSyntax := newSyntax + cmd + ' ';
             if not isBool then
-                newSyntax += arg + ' ';
+                newSyntax := newSyntax + arg + ' ';
             end;
         inc(index);
         end;