1 files changed, 1 insertions, 1 deletions
diff --git a/nest/rt.h b/nest/rt.h
index c959d358..70e0283f 100644
--- a/nest/rt.h
+++ b/nest/rt.h
@@ -181,7 +181,7 @@ struct rt_import_request {
   void (*log_state_change)(struct rt_import_request *req, u8 state);
   /* Preimport is called when the @new route is just-to-be inserted, replacing @old.
    * Return a route (may be different or modified in-place) to continue or NULL to withdraw. */
-  struct rte *(*preimport)(struct rt_import_request *req, struct rte *new, struct rte *old);
+  int (*preimport)(struct rt_import_request *req, struct rte *new, struct rte *old);
   struct rte *(*rte_modify)(struct rte *, struct linpool *);
 };