diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index 706619d..ca62ec6 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -105,7 +105,7 @@
 	struct urb *irq;
 	struct wacom_wac * wacom_wac;
 	struct mutex lock;
-	int open:1;
+	unsigned int open:1;
 	char phys[32];
 };