diff --git a/sys/contrib/dev/iwlwifi/pcie/internal.h b/sys/contrib/dev/iwlwifi/pcie/internal.h
index f7e4f868363d..cd2fb7811e4e 100644
--- a/sys/contrib/dev/iwlwifi/pcie/internal.h
+++ b/sys/contrib/dev/iwlwifi/pcie/internal.h
@@ -526,7 +526,9 @@ void iwl_trans_pcie_txq_set_shared_mode(struct iwl_trans *trans, u32 txq_id,
 int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 		      struct iwl_device_tx_cmd *dev_cmd, int txq_id);
 void iwl_pcie_txq_check_wrptrs(struct iwl_trans *trans);
+#if defined(__linux__)
 int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
+#endif
 void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
 			    struct iwl_rx_cmd_buffer *rxb);
 void iwl_trans_pcie_tx_reset(struct iwl_trans *trans);