diff --git a/sys/contrib/dev/iwlwifi/fw/api/sta.h b/sys/contrib/dev/iwlwifi/fw/api/sta.h
index d62fed54327..18f9470db30 100644
--- a/sys/contrib/dev/iwlwifi/fw/api/sta.h
+++ b/sys/contrib/dev/iwlwifi/fw/api/sta.h
@@ -477,7 +477,11 @@ struct iwl_mvm_wep_key_cmd {
 	u8 decryption_type;
 	u8 flags;
 	u8 reserved;
+#if defined(__linux__)
 	struct iwl_mvm_wep_key wep_key[];
+#elif defined(__FreeBSD__)
+	struct iwl_mvm_wep_key wep_key[0];
+#endif
 } __packed; /* SEC_CURR_WEP_KEY_CMD_API_S_VER_2 */
 
 /**
diff --git a/sys/contrib/dev/iwlwifi/mvm/d3.c b/sys/contrib/dev/iwlwifi/mvm/d3.c
index f6488b4bbe6..17d74a771d1 100644
--- a/sys/contrib/dev/iwlwifi/mvm/d3.c
+++ b/sys/contrib/dev/iwlwifi/mvm/d3.c
@@ -7,6 +7,9 @@
 #include <linux/etherdevice.h>
 #include <linux/ip.h>
 #include <linux/fs.h>
+#if defined(__FreeBSD__)
+#include <linux/string.h>
+#endif
 #include <net/cfg80211.h>
 #include <net/ipv6.h>
 #include <net/tcp.h>