diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index adf922a411bdd6f1bc2eed4c58e6f4a009dc5380..18dd09d8468f1e0577be44ad852ad7035545f040 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -3230,6 +3230,12 @@ extern "C" {
         offset: *mut off_t,
         count: ::size_t,
     ) -> ::ssize_t;
+    pub fn sendfile64(
+        out_fd: ::c_int,
+        in_fd: ::c_int,
+        offset: *mut off64_t,
+        count: ::size_t,
+    ) -> ::ssize_t;
     pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn getgrgid_r(
         gid: ::gid_t,