diff --git a/apps/helm_utils.go b/apps/helm_utils.go
index f9daa322..2208113e 100644
--- a/apps/helm_utils.go
+++ b/apps/helm_utils.go
@@ -208,7 +208,7 @@ func UpgradeHelmChartfromValues(helmChart, namespace, releaseName string, values
 	return nil
 }
 
-func UmbrellaUpgrade(isPartialRebuildDisableNeeded bool) (string, error) {
+func UmbrellaUpgrade(isPartialRebuildDisableNeeded bool) error {
 	logDir, ok := os.LookupEnv("e2etestlogdir")
 	if !ok {
 		logDir = "/tmp/e2e/logs"
@@ -231,5 +231,5 @@ func UmbrellaUpgrade(isPartialRebuildDisableNeeded bool) (string, error) {
 
 	UpgradeHelmChartfromValues("mayastor/openebs",e2e_config.GetConfig().Product.HelmReleaseName, common.NSMayastor(), values, oldValues, e2e_config.GetConfig().ImageTag)
 
-	return stderr.String(), nil
+	return nil
 }