diff --git a/src/plugins/help/helpviewer.cpp b/src/plugins/help/helpviewer.cpp
index b063faa5d6f..7d3c93e1c14 100644
--- a/src/plugins/help/helpviewer.cpp
+++ b/src/plugins/help/helpviewer.cpp
@@ -87,7 +87,8 @@ struct ExtensionMap {
 
 bool HelpViewer::isLocalUrl(const QUrl &url)
 {
-    return url.scheme() == QLatin1String("qthelp");
+    return url.scheme() == QLatin1String("about") // "No documenation available"
+            || url.scheme() == QLatin1String("qthelp");
 }
 
 bool HelpViewer::canOpenPage(const QString &url)