diff --git a/mt76x2.h b/mt76x2.h
index 1119c7f8..a61f801a 100644
--- a/mt76x2.h
+++ b/mt76x2.h
@@ -182,7 +182,6 @@ int mt76x2_apply_calibration_data(struct mt76x2_dev *dev, int channel);
 void mt76x2_set_tx_ackto(struct mt76x2_dev *dev);
 
 int mt76x2_phy_start(struct mt76x2_dev *dev);
-int mt76x2_set_channel(struct mt76x2_dev *dev, struct cfg80211_chan_def *chandef);
 int mt76x2_phy_set_channel(struct mt76x2_dev *dev,
 			 struct cfg80211_chan_def *chandef);
 int mt76x2_phy_get_rssi(struct mt76x2_dev *dev, s8 rssi, int chain);
diff --git a/mt76x2_core.c b/mt76x2_core.c
index d69dd18c..b104ced2 100644
--- a/mt76x2_core.c
+++ b/mt76x2_core.c
@@ -77,18 +77,3 @@ irqreturn_t mt76x2_irq_handler(int irq, void *dev_instance)
 	return IRQ_HANDLED;
 }
 
-int mt76x2_set_channel(struct mt76x2_dev *dev, struct cfg80211_chan_def *chandef)
-{
-	int ret;
-
-	tasklet_disable(&dev->pre_tbtt_tasklet);
-	cancel_delayed_work_sync(&dev->cal_work);
-
-	mt76x2_mac_stop(dev, true);
-	ret = mt76x2_phy_set_channel(dev, chandef);
-	mt76x2_mac_resume(dev);
-	tasklet_enable(&dev->pre_tbtt_tasklet);
-
-	return ret;
-}
-
diff --git a/mt76x2_main.c b/mt76x2_main.c
index 81e9a454..04a8bad6 100644
--- a/mt76x2_main.c
+++ b/mt76x2_main.c
@@ -93,6 +93,22 @@ mt76x2_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	mt76_txq_remove(&dev->mt76, vif->txq);
 }
 
+static int
+mt76x2_set_channel(struct mt76x2_dev *dev, struct cfg80211_chan_def *chandef)
+{
+	int ret;
+
+	tasklet_disable(&dev->pre_tbtt_tasklet);
+	cancel_delayed_work_sync(&dev->cal_work);
+
+	mt76x2_mac_stop(dev, true);
+	ret = mt76x2_phy_set_channel(dev, chandef);
+	mt76x2_mac_resume(dev);
+	tasklet_enable(&dev->pre_tbtt_tasklet);
+
+	return ret;
+}
+
 static int
 mt76x2_config(struct ieee80211_hw *hw, u32 changed)
 {