diff --git a/util/templates/defaults.yaml b/util/templates/defaults.yaml
index 1a5d46a17..23a04ef6f 100644
--- a/util/templates/defaults.yaml
+++ b/util/templates/defaults.yaml
@@ -439,6 +439,7 @@ params:
   - name: apikey
     description:
       generic: API Key
+    mask: true
   - name: tempsource
     description:
       de: Temperaturquelle