diff --git a/config/300-trigger.yaml b/config/300-trigger.yaml
index f79ce127424..d1ca495a136 100644
--- a/config/300-trigger.yaml
+++ b/config/300-trigger.yaml
@@ -68,6 +68,9 @@ spec:
                 dnsName:
                   type: string
                   minLength: 1
+                uri:
+                  type: string
+                  minLength: 1
                 ref:
                   type: object
                   required: