diff --git a/src/plugins/help/macwebkithelpviewer.mm b/src/plugins/help/macwebkithelpviewer.mm
index b699060111c..6fe80ab61ff 100644
--- a/src/plugins/help/macwebkithelpviewer.mm
+++ b/src/plugins/help/macwebkithelpviewer.mm
@@ -212,6 +212,7 @@ static void ensureProtocolHandler()
 - (void)webView:(WebView *)sender didStartProvisionalLoadForFrame:(WebFrame *)frame;
 - (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame;
 - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame;
+- (void)webView:(WebView *)sender didFailProvisionalLoadWithError:(NSError *)error forFrame:(WebFrame *)frame;
 
 @end
 
@@ -249,6 +250,14 @@ static void ensureProtocolHandler()
         viewer->slotLoadFinished();
 }
 
+- (void)webView:(WebView *)sender didFailProvisionalLoadWithError:(NSError *)error forFrame:(WebFrame *)frame
+{
+    Q_UNUSED(sender)
+    Q_UNUSED(error)
+    if (frame == mainFrame)
+        viewer->slotLoadFinished();
+}
+
 @end
 
 // #pragma mark -- UIDelegate