diff --git a/bgpd/bgp_rpki.c b/bgpd/bgp_rpki.c
index 1267e35097..3b89e50ce4 100644
--- a/bgpd/bgp_rpki.c
+++ b/bgpd/bgp_rpki.c
@@ -406,7 +406,7 @@ static int bgpd_sync_callback(struct thread *thread)
 		}
 	}
 
-	prefix_free(prefix);
+	prefix_free(&prefix);
 	return 0;
 }