diff --git a/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/stable/2017-11-15/iotdps.json b/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/stable/2017-11-15/iotdps.json
index 839431d02198..f4238ee829c2 100644
--- a/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/stable/2017-11-15/iotdps.json
+++ b/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/stable/2017-11-15/iotdps.json
@@ -592,7 +592,7 @@
        "tags": [
         "GET"
        ],
-       "operationId": "DpsCertificates_List",
+       "operationId": "DpsCertificate_List",
        "description": "Get all the certificates tied to the provisioning service.",
        "x-ms-examples": {
            "DPSGetCertificates": { "$ref": "./examples/DPSGetCertificates.json" }
@@ -1914,4 +1914,4 @@
       "type": "string"
      }
     }
-   }
\ No newline at end of file
+   }