diff --git a/scripts/install b/scripts/install
index 9c87473..874883c 100644
--- a/scripts/install
+++ b/scripts/install
@@ -136,10 +136,10 @@ ynh_add_config --template="../conf/cron" --destination="/etc/cron.d/$app"
 #=================================================
 ynh_script_progression --message="Adding a config file..."
 
-ynh_add_config --template="../conf/ost-sampleconfig.php" --destination="$final_path/include/ost-config.php"
+cp -f "../conf/ost-sampleconfig.php" "$final_path/include/ost-config.php"
 
-chmod 400 "$final_path/include/ost-config.php"
-chown $app:$app "$final_path/include/ost-config.php"
+chmod 666 "$final_path/include/ost-config.php"
+chown $app:www-data "$final_path/include/ost-config.php"
 
 #=================================================
 # BUILD PLUGINS
@@ -170,6 +170,7 @@ pushd "$final_path/include/plugins/build"
 	#php${phpversion} -dphar.readonly=0 make.php build preventautoscroll
 	#cp *.phar $final_path/include/plugins/.
 popd
+
 ynh_secure_remove --file="$final_path/include/plugins/build"
 
 #=================================================
@@ -202,6 +203,9 @@ ynh_permission_update --permission="main" --remove="visitors"
 
 ynh_secure_remove --file="$final_path/setup"
 
+chmod 400 "$final_path/include/ost-config.php"
+chown $app:www-data "$final_path/include/ost-config.php"
+
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 58f15c2..25d21fb 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -138,10 +138,8 @@ phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 #=================================================
 ynh_script_progression --message="Updating a config file..."
 
-ynh_add_config --template="../conf/ost-sampleconfig.php" --destination="$final_path/include/ost-config.php"
-
 chmod 400 "$final_path/include/ost-config.php"
-chown $app:$app "$final_path/include/ost-config.php"
+chown $app:www-data "$final_path/include/ost-config.php"
 
 #=================================================
 # BUILD PLUGINS