diff --git a/lib/chkconfig.ltx b/lib/chkconfig.ltx
index 705bb65e82..004ffa7ed9 100644
--- a/lib/chkconfig.ltx
+++ b/lib/chkconfig.ltx
@@ -95,7 +95,7 @@
         \ifx\missingelements\empty
           \edef\missingelements{\myfile}
         \else
-          \edef\missingelements{\missingelements, \myfile}
+          \edef\missingelements{\missingelements,\myfile}
         \fi
       }
   }