diff --git a/storage/pkg/command/drivers.go b/storage/pkg/command/drivers.go
index 8d501e6aa0..6cc6eb1257 100644
--- a/storage/pkg/command/drivers.go
+++ b/storage/pkg/command/drivers.go
@@ -91,7 +91,7 @@ func drivers(cfg *config.Config) map[string]interface{} {
 			"user_layout":         cfg.Reva.Storages.Common.UserLayout,
 			"treetime_accounting": true,
 			"treesize_accounting": true,
-			"owner":               "95cb8724-03b2-11eb-a0a6-c33ef8ef53ad", // the accounts service system account uuid
+			"owner":               cfg.Reva.Storages.OCIS.ServiceUserUUID, // the accounts service system account uuid
 		},
 		"s3": map[string]interface{}{
 			"region":     cfg.Reva.Storages.S3.Region,
diff --git a/storage/pkg/config/config.go b/storage/pkg/config/config.go
index 506830ef75..98a95a243b 100644
--- a/storage/pkg/config/config.go
+++ b/storage/pkg/config/config.go
@@ -165,6 +165,7 @@ type StorageConfig struct {
 	OwnCloud DriverOwnCloud
 	S3       DriverS3
 	Common   DriverCommon
+	OCIS     DriverOCIS
 	// TODO checksums ... figure out what that is supposed to do
 }
 
@@ -242,6 +243,11 @@ type DriverEOS struct {
 	GatewaySVC string
 }
 
+// DriverOCIS defines the available oCIS storage driver configuration.
+type DriverOCIS struct {
+	ServiceUserUUID string
+}
+
 // DriverOwnCloud defines the available ownCloud storage driver configuration.
 type DriverOwnCloud struct {
 	DriverCommon
diff --git a/storage/pkg/flagset/driverocis.go b/storage/pkg/flagset/driverocis.go
index 76eb5e61b4..75f80caaae 100644
--- a/storage/pkg/flagset/driverocis.go
+++ b/storage/pkg/flagset/driverocis.go
@@ -30,5 +30,12 @@ func DriverOCISWithConfig(cfg *config.Config) []cli.Flag {
 			EnvVars:     []string{"STORAGE_DRIVER_OCIS_LAYOUT"},
 			Destination: &cfg.Reva.Storages.Common.UserLayout,
 		},
+		&cli.StringFlag{
+			Name:        "service-user-uuid",
+			Value:       "95cb8724-03b2-11eb-a0a6-c33ef8ef53ad",
+			Usage:       "uuid of the internal service user",
+			EnvVars:     []string{"STORAGE_DRIVER_OCIS_SERVICE_USER_UUID"},
+			Destination: &cfg.Reva.Storages.OCIS.ServiceUserUUID,
+		},
 	}
 }