diff --git a/dhcp.c b/dhcp.c
index 83885ff..b8a687a 100644
--- a/dhcp.c
+++ b/dhcp.c
@@ -546,7 +546,7 @@ enum return_type perform_dhcp(struct interface_info * intf)
 	messageType = DHCP_TYPE_DISCOVER;
 	add_vendor_code(&breq, DHCP_OPTION_TYPE, 1, &messageType);
 
-	memset(&client_addr.sin_addr, 0, sizeof(&client_addr.sin_addr));
+	memset(&client_addr.sin_addr, 0, sizeof(client_addr.sin_addr));
 	client_addr.sin_family = AF_INET;
 	client_addr.sin_port = htons(BOOTP_CLIENT_PORT);	/* bootp client */