diff --git a/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json b/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json
index 1b59779ce818..384521adebae 100644
--- a/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json
+++ b/specification/eventgrid/data-plane/Microsoft.Communication/stable/2018-01-01/AzureCommunicationServices.json
@@ -174,11 +174,11 @@
         }
       }
     },
-    "ACSSMSDeliveryReportReceivedEventData": {
+    "AcsSmsDeliveryReportReceivedEventData": {
       "description": "Schema of the Data property of an EventGridEvent for an Microsoft.Communication.SMSDeliveryReportReceived event.",
       "allOf": [
         {
-          "$ref": "#/definitions/ACSSMSEventBaseProperties"
+          "$ref": "#/definitions/AcsSmsEventBaseProperties"
         }
       ],
       "properties": {
@@ -194,7 +194,7 @@
           "description": "List of details of delivery attempts made",
           "type": "array",
           "items": {
-            "$ref": "#/definitions/ACSSMSDeliveryAttemptProperties"
+            "$ref": "#/definitions/AcsSmsDeliveryAttemptProperties"
           }
         },
         "receivedTimestamp": {
@@ -204,11 +204,11 @@
         }
       }
     },
-    "ACSSMSReceivedEventData": {
+    "AcsSmsReceivedEventData": {
       "description": "Schema of the Data property of an EventGridEvent for an Microsoft.Communication.SMSReceived event.",
       "allOf": [
         {
-          "$ref": "#/definitions/ACSSMSEventBaseProperties"
+          "$ref": "#/definitions/AcsSmsEventBaseProperties"
         }
       ],
       "properties": {
@@ -311,7 +311,7 @@
         }
       }
     },
-    "ACSSMSEventBaseProperties": {
+    "AcsSmsEventBaseProperties": {
       "description": "Schema of common properties of all SMS events",
       "type": "object",
       "properties": {
@@ -329,7 +329,7 @@
         }
       }
     },
-    "ACSSMSDeliveryAttemptProperties": {
+    "AcsSmsDeliveryAttemptProperties": {
       "description": "Schema for details of a delivery attempt",
       "type": "object",
       "properties": {