diff --git a/lib/isc/unix/net.c b/lib/isc/unix/net.c
index 2a9d92fa11..0fa038885a 100644
--- a/lib/isc/unix/net.c
+++ b/lib/isc/unix/net.c
@@ -519,8 +519,6 @@ cmsgsend(int s, int level, int type, struct addrinfo *res) {
 		return (ISC_FALSE);
 	}
 
-	memset(&control, 0, sizeof(control));
-
 	iovec.iov_base = buf;
 	iovec.iov_len = sizeof(buf);