diff --git a/extensions/storage-shares/pkg/config/config.go b/extensions/storage-shares/pkg/config/config.go
index cb3258648d3..b0416316c2a 100644
--- a/extensions/storage-shares/pkg/config/config.go
+++ b/extensions/storage-shares/pkg/config/config.go
@@ -20,6 +20,7 @@ type Config struct {
 
 	SkipUserGroupsInToken bool `yaml:"skip_user_groups_in_token" env:"STORAGE_SHARES_SKIP_USER_GROUPS_IN_TOKEN"`
 
+	MountID                string `yaml:"mount_id" env:"STORAGE_SHARES_MOUNT_ID"`
 	ReadOnly               bool   `yaml:"readonly" env:"STORAGE_SHARES_READ_ONLY"`
 	SharesProviderEndpoint string `yaml:"user_share_provider_endpoint" env:"STORAGE_SHARES_USER_SHARE_PROVIDER_ENDPOINT"`
 
diff --git a/extensions/storage-shares/pkg/config/defaults/defaultconfig.go b/extensions/storage-shares/pkg/config/defaults/defaultconfig.go
index f9842e791dd..9569e344010 100644
--- a/extensions/storage-shares/pkg/config/defaults/defaultconfig.go
+++ b/extensions/storage-shares/pkg/config/defaults/defaultconfig.go
@@ -30,6 +30,7 @@ func DefaultConfig() *config.Config {
 		Reva: &config.Reva{
 			Address: "127.0.0.1:9142",
 		},
+		MountID:                "7639e57c-4433-4a12-8201-722fd0009154",
 		ReadOnly:               false,
 		SharesProviderEndpoint: "localhost:9150",
 	}
diff --git a/extensions/storage-shares/pkg/revaconfig/config.go b/extensions/storage-shares/pkg/revaconfig/config.go
index 4e69088fec1..c0155462217 100644
--- a/extensions/storage-shares/pkg/revaconfig/config.go
+++ b/extensions/storage-shares/pkg/revaconfig/config.go
@@ -24,6 +24,7 @@ func StorageSharesConfigFromStruct(cfg *config.Config) map[string]interface{} {
 			"services": map[string]interface{}{
 				"sharesstorageprovider": map[string]interface{}{
 					"usershareprovidersvc": cfg.SharesProviderEndpoint,
+					"mount_id":             cfg.MountID,
 				},
 			},
 		},