diff --git a/lib/mpls.h b/lib/mpls.h
new file mode 100644
index 00000000..8673444c
--- /dev/null
+++ b/lib/mpls.h
@@ -0,0 +1,20 @@
+/*
+ *	BIRD Internet Routing Daemon -- MPLS manipulation
+ *
+ *	(c) 2016 Jan Matejka <mq@ucw.cz>
+ *	(c) 2016 CZ.NIC z.s.p.o.
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_MPLS_H_
+#define _BIRD_MPLS_H_
+
+#define MPLS_STACK_LENGTH   8 /* Adjust this if you need deeper MPLS stack */
+
+typedef struct mpls_stack {
+  u8 len;
+  u32 label[MPLS_STACK_LENGTH];
+} mpls_stack;
+
+#endif