diff --git a/specification/deviceprovisioningservices/Deviceprovisioningservices.Management/models.tsp b/specification/deviceprovisioningservices/Deviceprovisioningservices.Management/models.tsp
index af8983d327e0..861d1c22a622 100644
--- a/specification/deviceprovisioningservices/Deviceprovisioningservices.Management/models.tsp
+++ b/specification/deviceprovisioningservices/Deviceprovisioningservices.Management/models.tsp
@@ -135,7 +135,7 @@ union PrivateLinkServiceConnectionStatus {
 }
 
 /**
- * IotHub MI authentication type: KeyBased, UserAssigned, SystemAssigned.
+ * IotHub MI authentication type: KeyBased, UserAssigned, and SystemAssigned.
  */
 union IotHubAuthenticationType {
   string,
diff --git a/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/preview/2025-02-01-preview/iotdps.json b/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/preview/2025-02-01-preview/iotdps.json
index 1790f2e9a0d7..b544bce032c8 100644
--- a/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/preview/2025-02-01-preview/iotdps.json
+++ b/specification/deviceprovisioningservices/resource-manager/Microsoft.Devices/preview/2025-02-01-preview/iotdps.json
@@ -2015,7 +2015,7 @@
     },
     "IotHubAuthenticationType": {
       "type": "string",
-      "description": "IotHub MI authentication type: KeyBased, UserAssigned, SystemAssigned.",
+      "description": "IotHub MI authentication type: KeyBased, UserAssigned, and SystemAssigned.",
       "enum": [
         "KeyBased",
         "UserAssigned",