diff --git a/scripts/upgrade b/scripts/upgrade
index d344f67..16a7505 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -129,8 +129,10 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..."
 
+	architecture=$YNH_ARCH
+
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+	ynh_setup_source --dest_dir="$final_path" --source_id=$architecture
 fi
 
 # FIXME: this should be managed by the core in the future