diff --git a/mxm_wifiex/wlan_src/mlinux/moal_main.c b/mxm_wifiex/wlan_src/mlinux/moal_main.c
index 709392c..0e1ee59 100644
--- a/mxm_wifiex/wlan_src/mlinux/moal_main.c
+++ b/mxm_wifiex/wlan_src/mlinux/moal_main.c
@@ -10041,9 +10041,15 @@ void woal_regist_oob_wakeup_irq(moal_handle *handle)
 		goto err_exit;
 	}
 
-	ret = devm_request_irq(dev, handle->irq_oob_wakeup,
-			       woal_oob_wakeup_irq_handler,
-			       IRQF_TRIGGER_LOW | IRQF_SHARED,
+	/*
+	 * i.MX93 9x9 qsb board connect the out-of-band WoWLAN irq pin(M.2 pin21
+	 * SDIO_WAKE) to I2C IO expander pcal6524 instead of i.MX GPIO, pcal6524
+	 * IRQ handlers need to be threaded, the IRQ trigger type depends on the
+	 * Devicetree setting.
+	 */
+	ret = devm_request_threaded_irq(dev, handle->irq_oob_wakeup,
+			       NULL, woal_oob_wakeup_irq_handler,
+			       IRQF_SHARED | IRQF_ONESHOT,
 			       "wifi_oob_wakeup", handle);
 	if (ret) {
 		dev_err(dev, "Failed to request irq_oob_wakeup %d (%d)\n",