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 701502a2646f..ff05dfd68c52 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
@@ -924,12 +924,11 @@
           "description": "The time frame for pulling data for the query. If custom, then a specific time period must be provided.",
           "type": "string",
           "enum": [
-            "WeekToDate",
             "MonthToDate",
-            "YearToDate",
-            "TheLastWeek",
+            "BillingMonthToDate",
             "TheLastMonth",
-            "TheLastYear",
+            "TheLastBillingMonth",
+            "WeekToDate",
             "Custom"
           ],
           "x-ms-enum": {