diff --git a/scst/include/scst.h b/scst/include/scst.h
index 260b32b9b..983111394 100644
--- a/scst/include/scst.h
+++ b/scst/include/scst.h
@@ -1517,7 +1517,7 @@ struct scst_device {
 	unsigned short dev_double_ua_possible:1;
 
 	/* If set, dev is read only */
-	unsigned int rd_only:1;
+	unsigned short rd_only:1;
 
 	/**************************************************************/