diff --git a/storage/pkg/command/sharing.go b/storage/pkg/command/sharing.go
index f1dc02a35e..c043b93d36 100644
--- a/storage/pkg/command/sharing.go
+++ b/storage/pkg/command/sharing.go
@@ -142,6 +142,13 @@ func sharingConfigFromStruct(c *cli.Context, cfg *config.Config) map[string]inte
 							"db_port":          cfg.Reva.Sharing.UserSQLPort,
 							"db_name":          cfg.Reva.Sharing.UserSQLName,
 						},
+						"cs3": map[string]interface{}{
+							"gateway_addr":        cfg.Reva.Gateway.Endpoint,
+							"provider_addr":       cfg.Reva.Sharing.CS3ProviderAddr,
+							"service_user_id":     cfg.Reva.Sharing.CS3ServiceUser,
+							"service_user_idp":    cfg.Reva.Sharing.CS3ServiceUserIdp,
+							"machine_auth_apikey": cfg.Reva.AuthMachineConfig.MachineAuthAPIKey,
+						},
 					},
 				},
 				"publicshareprovider": map[string]interface{}{
diff --git a/storage/pkg/config/config.go b/storage/pkg/config/config.go
index df983cb340..fcb29b09bd 100644
--- a/storage/pkg/config/config.go
+++ b/storage/pkg/config/config.go
@@ -78,6 +78,9 @@ type Sharing struct {
 	Port
 	UserDriver                       string `ocisConfig:"user_driver"`
 	UserJSONFile                     string `ocisConfig:"user_json_file"`
+	CS3ProviderAddr                  string `ocisConfig:"provider_addr"`
+	CS3ServiceUser                   string `ocisConfig:"service_user_id"`
+	CS3ServiceUserIdp                string `ocisConfig:"service_user_idp"`
 	UserSQLUsername                  string `ocisConfig:"user_sql_username"`
 	UserSQLPassword                  string `ocisConfig:"user_sql_password"`
 	UserSQLHost                      string `ocisConfig:"user_sql_host"`
@@ -1211,7 +1214,22 @@ func structMappings(cfg *Config) []shared.EnvBinding {
 			Destination: &cfg.Reva.Sharing.PublicJanitorRunInterval,
 		},
 
-		// shqringsql
+		// sharing cs3
+
+		{
+			EnvVars:     []string{"STORAGE_SHARING_CS3_PROVIDER_ADDR"},
+			Destination: &cfg.Reva.Sharing.CS3ProviderAddr,
+		},
+		{
+			EnvVars:     []string{"STORAGE_SHARING_CS3_SERVICE_USER"},
+			Destination: &cfg.Reva.Sharing.CS3ServiceUser,
+		},
+		{
+			EnvVars:     []string{"OCIS_URL", "STORAGE_SHARING_CS3_SERVICE_USER_IDP"},
+			Destination: &cfg.Reva.Sharing.CS3ServiceUserIdp,
+		},
+
+		// sharingsql
 		{
 			EnvVars:     []string{"STORAGE_SHARING_USER_SQL_USERNAME"},
 			Destination: &cfg.Reva.Sharing.UserSQLUsername,
diff --git a/storage/pkg/config/defaults/defaultconfig.go b/storage/pkg/config/defaults/defaultconfig.go
index e3bab3f54e..2e22656506 100644
--- a/storage/pkg/config/defaults/defaultconfig.go
+++ b/storage/pkg/config/defaults/defaultconfig.go
@@ -346,6 +346,9 @@ func DefaultConfig() *config.Config {
 					GRPCAddr:    "127.0.0.1:9150",
 					Services:    []string{"usershareprovider", "publicshareprovider"},
 				},
+				CS3ProviderAddr:                  "127.0.0.1:9215",
+				CS3ServiceUser:                   "95cb8724-03b2-11eb-a0a6-c33ef8ef53ad",
+				CS3ServiceUserIdp:                "https://localhost:9200",
 				UserDriver:                       "json",
 				UserJSONFile:                     path.Join(defaults.BaseDataPath(), "storage", "shares.json"),
 				UserSQLUsername:                  "",