diff --git a/port/windows/ipadapter.c b/port/windows/ipadapter.c
index e6721fda4e..5dffef4534 100644
--- a/port/windows/ipadapter.c
+++ b/port/windows/ipadapter.c
@@ -1229,7 +1229,7 @@ oc_send_discovery_request(oc_message_t *message)
       }
       DWORD ttl = OC_IPV4_MULTICAST_TTL;
       if (setsockopt(dev->server4_sock, IPPROTO_IP, IP_MULTICAST_TTL,
-                     (char*)&ttl, sizeof(DWORD)) == -1) {
+                     (char *)&ttl, sizeof(DWORD)) == -1) {
         OC_ERR("setting socket option for default IP_MULTICAST_TTL: %d",
                WSAGetLastError());
         goto done;