diff --git a/scripts/upgrade b/scripts/upgrade
index d0fa5bb..f9da2fb 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -42,7 +42,7 @@ ynh_remove_logrotate
 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="$install_dir/build"
+ynh_setup_source --dest_dir="$install_dir/build" --full_replace=1
 
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"