diff --git a/src/mod_netconf.h b/src/mod_netconf.h
index 7a4e32d..1abf803 100644
--- a/src/mod_netconf.h
+++ b/src/mod_netconf.h
@@ -84,5 +84,7 @@
 
 extern pthread_rwlock_t session_lock; /**< mutex protecting netconf_session_list from multiple access errors */
 
+json_object *create_error(const char *errmess);
+
 #endif