diff --git a/mt7603.h b/mt7603.h
index 43a5b58d..4b822ffa 100644
--- a/mt7603.h
+++ b/mt7603.h
@@ -229,7 +229,6 @@ struct sk_buff *mt7603_mac_status_skb(struct mt7603_dev *dev,
 void mt7603_mac_rx_ba_reset(struct mt7603_dev *dev, void *addr, u8 tid);
 void mt7603_mac_tx_ba_reset(struct mt7603_dev *dev, int wcid, int tid, int ssn,
 			    int ba_size);
-void mt7603_mac_watchdog_reset(struct mt7603_dev *dev);
 
 int mt7603_mcu_set_channel(struct mt7603_dev *dev);
 int mt7603_mcu_set_eeprom(struct mt7603_dev *dev);
diff --git a/mt7603_mac.c b/mt7603_mac.c
index 5aba6f1b..e17d611e 100644
--- a/mt7603_mac.c
+++ b/mt7603_mac.c
@@ -1102,7 +1102,7 @@ void mt7603_mac_stop(struct mt7603_dev *dev)
 	mt76_clear(dev, MT_WF_ARB_RQCR, MT_WF_ARB_RQCR_RX_START);
 }
 
-void mt7603_mac_watchdog_reset(struct mt7603_dev *dev)
+static void mt7603_mac_watchdog_reset(struct mt7603_dev *dev)
 {
 	int beacon_int = dev->beacon_int;
 	u32 mask = dev->irqmask;