diff --git a/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/afdx.json b/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/afdx.json
index 66e5f076e76b..92e5b0e0643d 100644
--- a/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/afdx.json
+++ b/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/afdx.json
@@ -2856,7 +2856,7 @@
             "type": "string"
           },
           {
-            "name": "securityPolicUpdateProperties",
+            "name": "securityPolicyUpdateProperties",
             "in": "body",
             "description": "Security policy update properties",
             "required": true,
diff --git a/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/examples/SecurityPolicies_Patch.json b/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/examples/SecurityPolicies_Patch.json
index c5d6a525836e..12697bfa1cd2 100644
--- a/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/examples/SecurityPolicies_Patch.json
+++ b/specification/cdn/resource-manager/Microsoft.Cdn/stable/2021-06-01/examples/SecurityPolicies_Patch.json
@@ -5,7 +5,7 @@
     "resourceGroupName": "RG",
     "profileName": "profile1",
     "securityPolicyName": "securityPolicy1",
-    "securityPolicyProperties": {
+    "securityPolicyUpdateProperties": {
       "properties": {
         "parameters": {
           "type": "WebApplicationFirewall",