diff --git a/Documentation.html b/Documentation.html
index e363bf541..1a50bf51d 100755
--- a/Documentation.html
+++ b/Documentation.html
@@ -2399,7 +2399,7 @@ CREDITS, in chronological order
     * various small features and fixes
     * German language file updates
 
-[mb] - Mike Beck <mike.beck at ibmiller.de>
+[mb] - Mike Beck <mike.beck_at_ibmiller.de>
     * automatic joins in QBE
     * links column in printview
     * Relation view