diff --git a/docs/configuration.md b/docs/configuration.md
index e9991b43..071177c1 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -12,8 +12,8 @@ While the command-line flags configure immutable system parameters, the
 configuration file defines inhibition rules, notification routing and
 notification receivers.
 
-The [visual editor](/webtools/alerting/routing-tree-editor) can assist in
-building routing trees.
+The [visual editor](https://www.prometheus.io/webtools/alerting/routing-tree-editor)
+can assist in building routing trees.
 
 To view all available command-line flags, run `alertmanager -h`.