diff --git a/specification/automation/resource-manager/Microsoft.Automation/stable/2018-06-30/runbook.json b/specification/automation/resource-manager/Microsoft.Automation/stable/2018-06-30/runbook.json
index eebcd8be7a27..46df5d6fb89d 100644
--- a/specification/automation/resource-manager/Microsoft.Automation/stable/2018-06-30/runbook.json
+++ b/specification/automation/resource-manager/Microsoft.Automation/stable/2018-06-30/runbook.json
@@ -79,7 +79,7 @@
           "200": {
             "description": "OK",
             "schema": {
-              "type": "string"
+              "type": "file"
             }
           },
           "default": {