diff --git a/conf/systemd.service b/conf/systemd.service
index b489e29..f7517e1 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -6,8 +6,7 @@ After=network.target
 
 [Service]
 Type=simple
-User=__APP__
-Group=__APP__
+User=www-data
 RemainAfterExit=yes
 Restart=always
 RestartSec=10
diff --git a/scripts/install b/scripts/install
index 6443ee8..56aefc0 100644
--- a/scripts/install
+++ b/scripts/install
@@ -199,7 +199,7 @@ fi
 # Configure owner
 #=================================================
 
-chown -R $app:$app "$final_path"
+chown -R www-data $final_path
 
 #=================================================
 # Start lstu
diff --git a/scripts/restore b/scripts/restore
index dca01b3..ff4b7c1 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -91,7 +91,7 @@ ynh_psql_connect_as $db_name $db_pwd $db_name < ./db.sql
 #=================================================
 
 # Restore permissions on app files
-chown -R $app:$app "$final_path"
+chown -R www-data $final_path
 
 #=================================================
 # SPECIFIC RESTORATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 7f92867..fe98d8a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -153,7 +153,7 @@ ynh_store_file_checksum "${final_path}/lstu.conf"
 # SECURING FILES AND DIRECTORIES
 #=================================================
 
-chown -R $app:$app "$final_path"
+chown -R www-data $final_path
 
 #=================================================
 # SETUP SYSTEMD