diff --git a/src/plugins/help/helpviewer_qtb.cpp b/src/plugins/help/helpviewer_qtb.cpp
index 2e12a8a0321..9787dc1622c 100644
--- a/src/plugins/help/helpviewer_qtb.cpp
+++ b/src/plugins/help/helpviewer_qtb.cpp
@@ -173,7 +173,7 @@ void HelpViewer::setSource(const QUrl &url)
         : HelpViewer::tr("<html><head><meta http-equiv=\""
             "content-type\" content=\"text/html; charset=UTF-8\"><title>Error 404...</title>"
             "</head><body><div align=\"center\"><br/><br/><h1>The page could not be found</h1>"
-            "<br/><h3>'%1'</h3></div></body>")
+            "<br/><h3>'%1'</h3></div></body></html>")
           .arg(url.toString()));
 
     emit loadFinished(true);
