diff --git a/headers/os/kernel/syscalls.h b/headers/os/kernel/syscalls.h
index 9dc7c502b1..a34a5d0aff 100755
--- a/headers/os/kernel/syscalls.h
+++ b/headers/os/kernel/syscalls.h
@@ -33,7 +33,7 @@ int     sys_open(const char *path, int omode);
 int     sys_close(int fd);
 ssize_t sys_read(int fd, void *buf, off_t pos, size_t len);
 ssize_t sys_write(int fd, const void *buf, off_t pos, size_t len);
-int     sys_seek(int fd, off_t pos, int seek_type);
+off_t   sys_seek(int fd, off_t pos, int seek_type);
 int     sys_ioctl(int fd, ulong op, void *buf, size_t length);
 int     sys_unlink(const char *path);
 int     sys_rename(const char *oldpath, const char *newpath);
diff --git a/headers/private/kernel/fd.h b/headers/private/kernel/fd.h
index 0af90dca15..31b4f507f5 100644
--- a/headers/private/kernel/fd.h
+++ b/headers/private/kernel/fd.h
@@ -29,13 +29,13 @@ struct fd_ops {
 	char *fs_name;
 	ssize_t		(*fd_read) (struct file_descriptor *, void *buffer, off_t pos, size_t *length);
 	ssize_t		(*fd_write)(struct file_descriptor *, const void *buffer, off_t pos, size_t *length);
-	int			(*fd_seek)(struct file_descriptor *, off_t pos, int seek_type);
+	off_t		(*fd_seek)(struct file_descriptor *, off_t pos, int seekType);
 	int			(*fd_ioctl)(struct file_descriptor *, ulong op, void *buffer, size_t length);
 //	int			(*fd_poll)(struct file_descriptor *, int);
 	status_t	(*fd_read_dir)(struct file_descriptor *,struct dirent *buffer,size_t bufferSize,uint32 *_count);
 	status_t	(*fd_rewind_dir)(struct file_descriptor *);
 	int			(*fd_stat)(struct file_descriptor *, struct stat *);
-	int			(*fd_close)(struct file_descriptor *, int, struct io_context *);
+	int			(*fd_close)(struct file_descriptor *);
 	void		(*fd_free)(struct file_descriptor *);
 };
 
@@ -45,6 +45,7 @@ struct file_descriptor {
 	struct fd_ops *ops;
 	struct vnode *vnode;
 	void	*cookie;
+	int32	dummy;
 };
 
 
diff --git a/headers/private/kernel/vfs.h b/headers/private/kernel/vfs.h
index 4eaf3f768e..e69a62db9e 100755
--- a/headers/private/kernel/vfs.h
+++ b/headers/private/kernel/vfs.h
@@ -76,7 +76,7 @@ struct fs_calls {
 	int (*fs_free_cookie)(fs_cookie fs, fs_vnode v, file_cookie cookie);
 	ssize_t (*fs_read)(fs_cookie fs, fs_vnode v, file_cookie cookie, void *buf, off_t pos, size_t *len);
 	ssize_t (*fs_write)(fs_cookie fs, fs_vnode v, file_cookie cookie, const void *buf, off_t pos, size_t *len);
-	int (*fs_seek)(fs_cookie fs, fs_vnode v, file_cookie cookie, off_t pos, int st);
+	off_t (*fs_seek)(fs_cookie fs, fs_vnode v, file_cookie cookie, off_t pos, int seekType);
 
 	/* directory operations */
 	int (*fs_create_dir)(fs_cookie fs, fs_vnode dir, const char *name, int perms, vnode_id *new_vnid);
@@ -153,7 +153,7 @@ int sys_sync(void);
 int sys_open(const char *path, int omode);
 int sys_open_dir(const char *path);
 int sys_fsync(int fd);
-int sys_seek(int fd, off_t pos, int seek_type);
+off_t sys_seek(int fd, off_t pos, int seekType);
 int sys_create(const char *path, int omode, int perms);
 int sys_create_dir(const char *path, int perms);
 int sys_unlink(const char *path);
@@ -171,7 +171,7 @@ int user_sync(void);
 int user_open(const char *path, int omode);
 int user_open_dir(const char *path);
 int user_fsync(int fd);
-int user_seek(int fd, off_t pos, int seek_type);
+off_t user_seek(int fd, off_t pos, int seekType);
 int user_create(const char *path, int omode, int perms);
 int user_create_dir(const char *path, int perms);
 int user_unlink(const char *path);