diff --git a/conf/config.json b/conf/config.json
index 33b0920..74c4490 100644
--- a/conf/config.json
+++ b/conf/config.json
@@ -1,26 +1,16 @@
 {
     "default_server_config": {
-        "m.homeserver": {
-            "base_url": "https://__DEFAULT_HOME_SERVER__"
-        },
-        "m.identity_server": {
-            "base_url": "https://vector.im"
-        }
+        "m.homeserver": {"base_url": "https://__DEFAULT_HOME_SERVER__"},
+        "m.identity_server": {"base_url": "https://vector.im"}
     },
     "brand": "Element",
     "integrations_ui_url": "https://scalar.vector.im/",
     "integrations_rest_url": "https://scalar.vector.im/api",
     "showLabsSettings": false,
-    "roomDirectory": {
-        "servers": [
-            "matrix.org"
-        ]
-    },
+    "roomDirectory": {"servers": ["matrix.org"]},
     "enable_presence_by_hs_url": {
         "https://matrix.org": false,
         "https://matrix-client.matrix.org": false
     },
-    "embedded_pages": {
-        "login_for_welcome": __LOGIN_FOR_WELCOME__
-    }
+    "embedded_pages": {"login_for_welcome": __LOGIN_FOR_WELCOME__}
 }
diff --git a/scripts/install b/scripts/install
index e70f43e..4ef12fd 100644
--- a/scripts/install
+++ b/scripts/install
@@ -31,7 +31,8 @@ ynh_script_progression --message="Setting up source files..." --weight=4
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$install_dir"
 
-# Set permissions to app files
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$install_dir"
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index ddd7edf..c891943 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -17,8 +17,8 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 
 ynh_restore_file --origin_path="$install_dir"
 
-# Set permissions to app files
-chown -R $app:www-data "$install_dir"
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
 chmod 400 "$install_dir/config.json"
 chown $app:$app "$install_dir/config.json"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index b465a99..4f159d5 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -43,7 +43,8 @@ then
 	ynh_setup_source --dest_dir="$install_dir" --keep="config.json"
 fi
 
-# Set permissions to app files
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$install_dir"
 
 #=================================================