diff --git a/scripts/upgrade b/scripts/upgrade
index 631a6a1..e0ffd22 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -127,7 +127,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=1
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path" --keep="application/config/config.php $(echo $final_path/plugins/*) $final_path/application/config/config.php $final_path/upload"
+	ynh_setup_source --dest_dir="$final_path" --keep="application/config/config.php plugins/ application/config/config.php upload/"
 fi
 
 chmod 750 "$final_path"