diff --git a/basis/unix/linux/epoll/epoll.factor b/basis/unix/linux/epoll/epoll.factor
index 966db32f60..e613b042f2 100644
--- a/basis/unix/linux/epoll/epoll.factor
+++ b/basis/unix/linux/epoll/epoll.factor
@@ -1,18 +1,18 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 IN: unix.linux.epoll
-USING: alien.syntax classes.struct math ;
+USING: alien.c-types alien.syntax classes.struct math ;
 
 FUNCTION: int epoll_create ( int size ) ;
 
-FUNCTION: int epoll_ctl ( int epfd, int op, int fd, epoll_event* event ) ;
-
 STRUCT: epoll-event
 { events uint }
 { fd uint }
 { padding uint } ;
 
-FUNCTION: int epoll_wait ( int epfd, epoll_event* events, int maxevents, int timeout ) ;
+FUNCTION: int epoll_ctl ( int epfd, int op, int fd, epoll-event* event ) ;
+
+FUNCTION: int epoll_wait ( int epfd, epoll-event* events, int maxevents, int timeout ) ;
 
 CONSTANT: EPOLL_CTL_ADD 1 ! Add a file decriptor to the interface.
 CONSTANT: EPOLL_CTL_DEL 2 ! Remove a file decriptor from the interface.
diff --git a/basis/unix/linux/inotify/inotify.factor b/basis/unix/linux/inotify/inotify.factor
index 5f9bf5d462..f589c17e28 100644
--- a/basis/unix/linux/inotify/inotify.factor
+++ b/basis/unix/linux/inotify/inotify.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien.syntax math math.bitwise classes.struct ;
+USING: alien.c-types alien.syntax math math.bitwise classes.struct ;
 IN: unix.linux.inotify
 
 STRUCT: inotify-event
diff --git a/basis/unix/linux/linux.factor b/basis/unix/linux/linux.factor
index 259b8e7083..4035dbb307 100644
--- a/basis/unix/linux/linux.factor
+++ b/basis/unix/linux/linux.factor
@@ -103,7 +103,7 @@ STRUCT: dirent
     { d_name char[256] } ;
 
 FUNCTION: int open64 ( char* path, int flags, int prot ) ;
-FUNCTION: dirent64* readdir64 ( DIR* dirp ) ;
+FUNCTION: dirent* readdir64 ( DIR* dirp ) ;
 FUNCTION: int readdir64_r ( void* dirp, dirent* entry, dirent** result ) ;
 
 M: linux open-file [ open64 ] unix-system-call ;