diff --git a/bindings/ldk_node.udl b/bindings/ldk_node.udl
index 619a29667..c39d841cb 100644
--- a/bindings/ldk_node.udl
+++ b/bindings/ldk_node.udl
@@ -35,6 +35,8 @@ interface Builder {
 	void set_listening_addresses(sequence<SocketAddress> listening_addresses);
 	[Throws=BuildError]
 	Node build();
+	[Throws=BuildError]
+	Node build_with_fs_store();
 };
 
 interface Node {