diff --git a/scripts/upgrade b/scripts/upgrade
index 7b49a72..553d3ee 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -31,7 +31,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=4
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir" --keep="sites/"
+	ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="sites/"
 fi
 
 chmod -R o-rwx "$install_dir"