diff --git a/lib/hash.h b/lib/hash.h
index f4b1c23..4cb772e 100644
--- a/lib/hash.h
+++ b/lib/hash.h
@@ -70,4 +70,6 @@
 extern void hash_clean (struct hash *, void (*) (void *));
 extern void hash_free (struct hash *);
 
+extern unsigned int string_hash_make (const char *);
+
 #endif /* _ZEBRA_HASH_H */