diff --git a/conf/install-conf.yml b/conf/install-conf.yml
index c353510..8c030ab 100644
--- a/conf/install-conf.yml
+++ b/conf/install-conf.yml
@@ -19,4 +19,4 @@ dbtcpname: __DB_NAME__
 dbtcpuser: __DB_USER__
 dbtcppassword: __DB_PWD__
 
-dsfolder: __DATADIR__
\ No newline at end of file
+dsfolder: __DATA_DIR__
diff --git a/conf/systemd.service b/conf/systemd.service
index fe735c5..36716ab 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -25,7 +25,7 @@ SuccessExitStatus=0
 # Add environment variables
 Environment=CELLS_ENABLE_METRICS=false
 # Environment=CELLS_WORKING_DIR=__INSTALL_DIR__
-# Environment=CELLS_DATA_DIR=__DATADIR__
+# Environment=CELLS_DATA_DIR=__DATA_DIR__
 
 [Install]
 WantedBy=multi-user.target
diff --git a/manifest.toml b/manifest.toml
index 813602e..13a132c 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -67,9 +67,8 @@ ram.runtime = "50M"
 
     [resources.install_dir]
 
-    # [resources.data_dir]
-    # This will create/remove the data dir as /home/yunohost.app/$app
-    # and store the corresponding setting $data_dir
+    [resources.data_dir]
+    group = "www-data:rwx"
 
     [resources.permissions]
     main.url = "/"