diff --git a/include/hash.h b/include/hash.h
index 0f63d582..2f91fa04 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -27,6 +27,8 @@
 #ifndef INCLUDED_hash_h
 #define INCLUDED_hash_h
 
+extern struct Dictionary *nd_dict;
+
 extern rb_dlink_list resvTable[];
 extern rb_dlink_list ndTable[];