diff --git a/core.c b/core.c
index 741082d..4acf075 100644
--- a/core.c
+++ b/core.c
@@ -389,7 +389,7 @@
 	mctp->n_busses = 0;
 	binding->mctp = NULL;
 	binding->bus = NULL;
-	free(mctp->busses);
+	__mctp_free(mctp->busses);
 }
 
 int mctp_bridge_busses(struct mctp *mctp, struct mctp_binding *b1,