diff --git a/libc/include/fcntl.h b/libc/include/fcntl.h
index b7b91f2..e37e0a7 100644
--- a/libc/include/fcntl.h
+++ b/libc/include/fcntl.h
@@ -42,11 +42,14 @@
 #endif
 
 extern int creat(const char*, mode_t);
+extern int creat64(const char*, mode_t);
 extern int fallocate64(int, int, off64_t, off64_t);
 extern int fallocate(int, int, off_t, off_t);
 extern int fcntl(int, int, ...);
 extern int openat(int, const char*, int, ...);
+extern int openat64(int, const char*, int, ...);
 extern int open(const char*, int, ...);
+extern int open64(const char*, int, ...);
 extern int posix_fallocate64(int, off64_t, off64_t);
 extern int posix_fallocate(int, off_t, off_t);
 extern int unlinkat(int, const char*, int);