diff --git a/fs/namei.c b/fs/namei.c
index a83160a..314afe6 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1576,7 +1576,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
 	if (S_ISLNK(inode->i_mode))
 		return -ELOOP;
 	
-	if (S_ISDIR(inode->i_mode) && (flag & FMODE_WRITE))
+	if (S_ISDIR(inode->i_mode) && (acc_mode & MAY_WRITE))
 		return -EISDIR;
 
 	error = vfs_permission(nd, acc_mode);
@@ -1595,7 +1595,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
 			return -EACCES;
 
 		flag &= ~O_TRUNC;
-	} else if (IS_RDONLY(inode) && (flag & FMODE_WRITE))
+	} else if (IS_RDONLY(inode) && (acc_mode & MAY_WRITE))
 		return -EROFS;
 	/*
 	 * An append-only file must be opened in append mode for writing.