diff --git a/rule-types/github/pr_trusty_check.yaml b/rule-types/github/pr_trusty_check.yaml
index 6165d0c..23ac97f 100644
--- a/rule-types/github/pr_trusty_check.yaml
+++ b/rule-types/github/pr_trusty_check.yaml
@@ -30,7 +30,7 @@ def:
         default: review
       ecosystem_config:
         type: array
-        description: "The configuration for the ecosystems to check."
+        description: "The configuration for the ecosystems to check. Leave empty to use the default configuration."
         items:
           type: object
           properties: