diff --git a/conf/config.default.yml b/conf/config.default.yml
index 3ec8faf..059f590 100644
--- a/conf/config.default.yml
+++ b/conf/config.default.yml
@@ -22,7 +22,7 @@ DisableTrackers: false
 DisableIPv6: __DISABLE_IP_V6__
 # DisableIPv6 Don't connect to IPv6 peers.
 
-DisableUTP: false
+DisableUTP: __DISABLE_UTP__
 # Disable UTP in the torrent protocol.
 # In recent versions, the UTP process cause quite high CPU usage. Set to true can ease the situation.
 
diff --git a/scripts/upgrade b/scripts/upgrade
index c575d46..9835ca1 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -112,7 +112,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=5
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir=$final_path --source_id="$architecture" --keep="$final_path/config.yml"
+	ynh_setup_source --dest_dir=$final_path --source_id="$architecture" #--keep="$final_path/config.yml"
 fi
 
 chmod 750 "$final_path"
@@ -131,9 +131,9 @@ ynh_add_nginx_config
 #=================================================
 # MODIFY A CONFIG FILE
 #=================================================
-# ynh_script_progression --message="Modifying a config file..." --weight=1
+ynh_script_progression --message="Modifying a config file..." --weight=1
 
-# ynh_add_config --template="../conf/config.default.yml" --destination="$final_path/config.yml"
+ynh_add_config --template="../conf/config.default.yml" --destination="$final_path/config.yml"
 
 #=================================================
 # CREATE DIRECTORIES