diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 457710615261..a548c1d28fa8 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -217,11 +217,11 @@ struct ubi_volume {
 	void *upd_buf;
 
 	int *eba_tbl;
-	int checked:1;
-	int corrupted:1;
-	int upd_marker:1;
-	int updating:1;
-	int changing_leb:1;
+	unsigned int checked:1;
+	unsigned int corrupted:1;
+	unsigned int upd_marker:1;
+	unsigned int updating:1;
+	unsigned int changing_leb:1;
 
 #ifdef CONFIG_MTD_UBI_GLUEBI
 	/*