diff --git a/CHANGELOG.md b/CHANGELOG.md
index 942d7b3dac..d85b42d066 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -50,6 +50,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - Implemented `Extend`, `FromIterator`, and `IntoIterator` for `SigSet` and
   added `SigSet::iter` and `SigSetIter`.
   (#[1553](https://github.com/nix-rust/nix/pull/1553))
+- Added `ENOTRECOVERABLE` and `EOWNERDEAD` error codes on DragonFly.
+  (#[1665](https://github.com/nix-rust/nix/pull/1665))
 
 ### Changed
 
diff --git a/src/errno.rs b/src/errno.rs
index 3da246e823..17744fe22a 100644
--- a/src/errno.rs
+++ b/src/errno.rs
@@ -608,11 +608,13 @@ fn desc(errno: Errno) -> &'static str {
         EPROTO          => "Protocol error",
 
         #[cfg(any(target_os = "macos", target_os = "freebsd",
-                  target_os = "ios", target_os = "openbsd"))]
+                  target_os = "dragonfly", target_os = "ios",
+                  target_os = "openbsd"))]
         ENOTRECOVERABLE => "State not recoverable",
 
         #[cfg(any(target_os = "macos", target_os = "freebsd",
-                  target_os = "ios", target_os = "openbsd"))]
+                  target_os = "dragonfly", target_os = "ios",
+                  target_os = "openbsd"))]
         EOWNERDEAD      => "Previous owner died",
 
         #[cfg(any(target_os = "macos", target_os = "freebsd",
@@ -1663,6 +1665,8 @@ mod consts {
         ENOLINK         = libc::ENOLINK,
         EPROTO          = libc::EPROTO,
         ENOMEDIUM       = libc::ENOMEDIUM,
+        ENOTRECOVERABLE = libc::ENOTRECOVERABLE,
+        EOWNERDEAD      = libc::EOWNERDEAD,
         EASYNC          = libc::EASYNC,
     }