diff --git a/utils/mctp-demux-daemon.c b/utils/mctp-demux-daemon.c
index eb7121b..e30a607 100644
--- a/utils/mctp-demux-daemon.c
+++ b/utils/mctp-demux-daemon.c
@@ -291,7 +291,7 @@
 			ctx->n_clients * sizeof(struct client));
 
 	client = &ctx->clients[ctx->n_clients-1];
-	memset(client, 0, sizeof(client));
+	memset(client, 0, sizeof(*client));
 	client->active = true;
 	client->sock = fd;