diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
index 82bd41d92509..8697dc02ffb4 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
@@ -96,7 +96,7 @@ struct dio200_subdev_intr {
 	unsigned int ofs;
 	unsigned int valid_isns;
 	unsigned int enabled_isns;
-	bool active:1;
+	unsigned int active:1;
 };
 
 static unsigned char dio200_read8(struct comedi_device *dev,