diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json
index d9e36422309f..8a62002e0d69 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2019-11-01/costmanagement.json
@@ -1494,6 +1494,10 @@
         "tagKey": {
           "description": "Has comparison expression for a tag key",
           "$ref": "#/definitions/ReportConfigComparisonExpression"
+        },
+        "tagValue": {
+          "description": "Has comparison expression for a tag value",
+          "$ref": "#/definitions/ReportConfigComparisonExpression"
         }
       }
     },