diff --git a/include/nuttx/net/uip.h b/include/nuttx/net/uip.h
index b9bad39f8f..32f8821e57 100644
--- a/include/nuttx/net/uip.h
+++ b/include/nuttx/net/uip.h
@@ -68,9 +68,9 @@
 
 /* The following flags may be set in the set of flags before calling the
  * application callback. The UIP_ACKDATA, UIP_NEWDATA, and UIP_CLOSE flags
- * may be set at the same time, whereas the others are mutualy exclusive.
+ * may be set at the same time, whereas the others are mutually exclusive.
  *
- *   UIP_ACKDATA   IN:  Signifies that the outstanding data was acked and
+ *   UIP_ACKDATA   IN:  Signifies that the outstanding data was ACKed and
  *                      the application should send out new data instead
  *                      of retransmitting the last data (TCP only)
  *                 OUT: Input state must be preserved on output.
diff --git a/net/send.c b/net/send.c
index b521949053..8cc4410da3 100644
--- a/net/send.c
+++ b/net/send.c
@@ -43,6 +43,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 
+#include <nuttx/net/uip.h>
 #include <nuttx/net/tcp.h>
 
 #include "tcp/tcp.h"
diff --git a/net/tcp/tcp_wrbuffer.c b/net/tcp/tcp_wrbuffer.c
index 902b3bfb77..b893a6bd69 100644
--- a/net/tcp/tcp_wrbuffer.c
+++ b/net/tcp/tcp_wrbuffer.c
@@ -55,6 +55,7 @@
 #include <debug.h>
 
 #include <nuttx/net/iob.h>
+#include <nuttx/net/uip.h>
 #include <nuttx/net/tcp.h>
 
 #include "tcp/tcp.h"
diff --git a/net/uip/uip.h b/net/uip/uip.h
index 7a11dab26c..07852e0453 100644
--- a/net/uip/uip.h
+++ b/net/uip/uip.h
@@ -50,6 +50,7 @@
 #include <stdbool.h>
 #include <errno.h>
 #include <arch/irq.h>
+
 #include <nuttx/net/uip.h>
 #include <nuttx/net/arp.h>