diff --git a/examples/call-custom-function-inline.yaml b/examples/call-custom-function-inline.yaml
index 7486ea8b..18dc9850 100644
--- a/examples/call-custom-function-inline.yaml
+++ b/examples/call-custom-function-inline.yaml
@@ -12,7 +12,7 @@ use:
             type: object
             properties:
               petId:
-                type: string
+                type: integer
             required: [ petId ]
       call: http
       with: