diff --git a/components/engine/api/swagger.yaml b/components/engine/api/swagger.yaml
index ee707032be..8f8216f527 100644
--- a/components/engine/api/swagger.yaml
+++ b/components/engine/api/swagger.yaml
@@ -322,7 +322,6 @@ definitions:
       MaximumRetryCount:
         type: "integer"
         description: "If `on-failure` is used, the number of times to retry before giving up"
-    default: {}
 
   Resources:
     description: "A container's resources (cgroups config, ulimits, etc)"