diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 2eb771aa88f3..bb802e49919c 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -16,6 +16,7 @@
  */
 
 #include <linux/ip.h>
+#include <linux/in.h>
 #include "core.h"
 #include "debug.h"
 #include "testmode.h"