diff --git a/net/accept.c b/net/accept.c
index 07db1ef3030..122e67c4312 100644
--- a/net/accept.c
+++ b/net/accept.c
@@ -242,9 +242,9 @@ int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
   FAR struct uip_conn *conn;
   struct accept_s state;
 #ifdef CONFIG_NET_IPv6
-  FAR struct sockaddr_in6 *inaddr = (const struct sockaddr_in6 *)addr;
+  FAR struct sockaddr_in6 *inaddr = (struct sockaddr_in6 *)addr;
 #else
-  FAR struct sockaddr_in *inaddr = (const struct sockaddr_in *)addr;
+  FAR struct sockaddr_in *inaddr = (struct sockaddr_in *)addr;
 #endif
   irqstate_t save;
   int newfd;
diff --git a/net/uip/uip-tcpinput.c b/net/uip/uip-tcpinput.c
index 8b551ca9eff..73eb73592c4 100644
--- a/net/uip/uip-tcpinput.c
+++ b/net/uip/uip-tcpinput.c
@@ -46,6 +46,7 @@
 #if defined(CONFIG_NET) && defined(CONFIG_NET_TCP)
 
 #include <sys/types.h>
+#include <string.h>
 #include <debug.h>
 
 #include <net/uip/uipopt.h>
diff --git a/net/uip/uip-tcpsend.c b/net/uip/uip-tcpsend.c
index 5b28539bb20..b68788b93ba 100644
--- a/net/uip/uip-tcpsend.c
+++ b/net/uip/uip-tcpsend.c
@@ -45,6 +45,7 @@
 #if defined(CONFIG_NET) && defined(CONFIG_NET_TCP)
 
 #include <sys/types.h>
+#include <string.h>
 #include <debug.h>
 
 #include <net/uip/uipopt.h>