diff --git a/types/office-js/index.d.ts b/types/office-js/index.d.ts
index 544244033d..a23df780aa 100644
--- a/types/office-js/index.d.ts
+++ b/types/office-js/index.d.ts
@@ -9898,15 +9898,11 @@ declare namespace Excel {
          * Copy a worksheet and place it at the specified position. Return the copied worksheet.
          *
          * [Api set: ExcelApi 1.7]
+         * 
+         * @param positionType Specifies where to put the copy relative to the worksheet specified in relativeTo param. Can be Excel.WorksheetPositionType or string equivalent. Must not be Excel.WorksheetPositionType.none or "None".
+         * @param relativeTo Specifies the worksheet that is the basis for intepreting the positionType param. If not specified, the worksheet on which the copy() is called is assumed.
          */
-        copy(positionType?: Excel.WorksheetPositionType, relativeTo?: Excel.Worksheet): Excel.Worksheet;
-        /**
-         *
-         * Copy a worksheet and place it at the specified position. Return the copied worksheet.
-         *
-         * [Api set: ExcelApi 1.7]
-         */
-        copy(positionType?: "None" | "Before" | "After" | "Beginning" | "End", relativeTo?: Excel.Worksheet): Excel.Worksheet;
+        copy(positionType?: Excel.WorksheetPositionType | string, relativeTo?: Excel.Worksheet): Excel.Worksheet;
         /**
          *
          * Deletes the worksheet from the workbook.