diff --git a/cmd/sts-errors.go b/cmd/sts-errors.go
index f620a73cd..011a3d00d 100644
--- a/cmd/sts-errors.go
+++ b/cmd/sts-errors.go
@@ -33,7 +33,7 @@ func writeSTSErrorResponse(ctx context.Context, w http.ResponseWriter, isErrCode
 		err = stsErrCodes.ToSTSErr(errCode)
 	}
 	if err.Code == "InternalError" || !isErrCodeSTS {
-		aerr := getAPIError(APIErrorCode(errCode))
+		aerr := errorCodes.ToAPIErr(toAPIErrorCode(ctx, errCtxt))
 		if aerr.Code != "InternalError" {
 			err.Code = aerr.Code
 			err.Description = aerr.Description