diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8783afba1..0fac2557a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Unreleased
 
 - On Windows, fix `CursorMoved(0, 0)` getting dispatched on window focus.
+- On FreeBSD, NetBSD, and OpenBSD, fix build of X11 backend.
 
 # Version 0.19.0 (2019-03-06)
 
diff --git a/src/platform/linux/x11/mod.rs b/src/platform/linux/x11/mod.rs
index 559629792..0200c7181 100644
--- a/src/platform/linux/x11/mod.rs
+++ b/src/platform/linux/x11/mod.rs
@@ -19,7 +19,13 @@ use std::collections::HashMap;
 use std::ffi::CStr;
 use std::ops::Deref;
 use std::os::raw::*;
-use libc::{select, fd_set, FD_SET, FD_ZERO, FD_ISSET, EINTR, EINVAL, ENOMEM, EBADF, __errno_location};
+use libc::{select, fd_set, FD_SET, FD_ZERO, FD_ISSET, EINTR, EINVAL, ENOMEM, EBADF};
+#[cfg(target_os = "linux")]
+use libc::__errno_location;
+#[cfg(target_os = "freebsd")]
+use libc::__error as __errno_location;
+#[cfg(any(target_os = "netbsd", target_os = "openbsd"))]
+use libc::__errno as __errno_location;
 use std::sync::{Arc, mpsc, Weak};
 use std::sync::atomic::{self, AtomicBool};