diff --git a/manifest.json b/manifest.json
index 50fa9c2..6221e4e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Emulate videogames system and play videogames through your web browser... and more!",
         "fr": "Emulez des consoles de jeux et jouer à ces jeux vidéos dans votre explorateur web... Et beaucoup plus!"
     },
-    "version": "1.9.1~ynh1",
+    "version": "1.9.1~ynh2",
     "url": "http://www.retroarch.com/",
     "license": "GPL-3.0-or-later",
     "maintainer": {
diff --git a/scripts/change_url b/scripts/change_url
index 400bdf2..cdc160a 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -61,7 +61,7 @@ fi
 change_path=0
 if [ "$old_path" != "$new_path" ]
 then
-	ynh_print_warn "RetroArch works only on root path, path cannot be changed!
+	ynh_print_warn "RetroArch works only on www-data path, path cannot be changed!
 	#change_path=1
 fi
 
diff --git a/scripts/install b/scripts/install
index b898086..4d01829 100755
--- a/scripts/install
+++ b/scripts/install
@@ -94,12 +94,12 @@ chmod 666 $final_path/assets/cores/Game/README
 
 #setup indexer bash script
 ynh_add_config --template="../conf/indexer.sh" --destination="$final_path/indexer.sh"
-chown root: $final_path/indexer.sh
+chown www-data: $final_path/indexer.sh
 chmod 744 $final_path/indexer.sh
 #setup cron file
 cron_path="/etc/cron.d/$app"
 ynh_add_config --template="../conf/retroarch.cron" --destination="$cron_path"
-chown root: "$cron_path"
+chown www-data: "$cron_path"
 chmod 644 "$cron_path"
 
 #=================================================
@@ -119,12 +119,12 @@ fi
 # Create a dedicated nginx config
 ynh_add_nginx_config
 
-### For security reason, any app should set the permissions to root: before anything else.
+### For security reason, any app should set the permissions to www-data: before anything else.
 ### Then, if write authorization is needed, any access should be given only to directories
 ### that really need such authorization.
 
 # Set permissions to app files
-chown -R root: $final_path
+chown -R www-data: $final_path
 
 #=================================================
 # SETUP SSOWAT
diff --git a/scripts/restore b/scripts/restore
index 88d687e..28c78dd 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -73,7 +73,7 @@ ynh_restore_file --origin_path="$final_path"
 #=================================================
 
 # Restore permissions on app files
-chown -R root: $final_path
+chown -R www-data: $final_path
 
 #=================================================
 # SPECIFIC RESTORATION
diff --git a/scripts/upgrade b/scripts/upgrade
index af27fcc..c34ff6a 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -73,12 +73,12 @@ fi
 
 #setup indexer bash script
 ynh_add_config --template="../conf/indexer.sh" --destination="$final_path/indexer.sh"
-chown root: $final_path/indexer.sh
+chown www-data: $final_path/indexer.sh
 chmod 744 $final_path/indexer.sh
 #setup cron file
 cron_path="/etc/cron.d/$app"
 ynh_add_config --template="../conf/retroarch.cron" --destination="$cron_path"
-chown root: "$cron_path"
+chown www-data: "$cron_path"
 chmod 644 "$cron_path"
 
 #=================================================
@@ -119,7 +119,7 @@ ynh_npm install -g coffeescript
 # Set permissions on app files
 #=================================================
 # 
-chown -R root: $final_path
+chown -R www-data: $final_path
 
 
 #=================================================