diff --git a/drivers/bus/acpi/main.c b/drivers/bus/acpi/main.c
index b58c097eed2..d9dc256312c 100644
--- a/drivers/bus/acpi/main.c
+++ b/drivers/bus/acpi/main.c
@@ -311,6 +311,10 @@ ACPIDispatchDeviceControl(
 
               status = STATUS_PENDING;
               break;
+           
+           case IOCTL_BATTERY_QUERY_TAG:
+              DPRINT("IOCTL_BATTERY_QUERY_TAG is not supported!\n");
+              break;
 
            default:
               DPRINT1("Unsupported IOCTL: %x\n", irpStack->Parameters.DeviceIoControl.IoControlCode);