diff --git a/sys/rpc/clnt_rc.c b/sys/rpc/clnt_rc.c
index a6b2dfd43d8c..f0ad6731b5f9 100644
--- a/sys/rpc/clnt_rc.c
+++ b/sys/rpc/clnt_rc.c
@@ -385,6 +385,7 @@ clnt_reconnect_destroy(CLIENT *cl)
 
 	if (rc->rc_client)
 		CLNT_DESTROY(rc->rc_client);
+	mtx_destroy(&rc->rc_lock);
 	mem_free(rc, sizeof(*rc));
 	mem_free(cl, sizeof (CLIENT));
 }