diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index f5c35868d7..2cf5808083 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -29844,6 +29844,32 @@ (define-public rust-git2-curl-0.17
         ("rust-log" ,rust-log-0.4)
         ("rust-url" ,rust-url-2))))))
 
+(define-public rust-gix-mailmap-0.13
+  (package
+    (name "rust-gix-mailmap")
+    (version "0.13.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "gix-mailmap" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0spslf6r4l51z640fxqpw2nq4j7imzz0jhxwy44y086948cp0ls6"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:tests? #f      ; use of undeclared crate or module `gix_testtools`
+       #:cargo-inputs
+       (("rust-bstr" ,rust-bstr-1)
+        ("rust-document-features" ,rust-document-features-0.2)
+        ("rust-gix-actor" ,rust-gix-actor-0.21)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-thiserror" ,rust-thiserror-1))))
+    (home-page "https://github.com/Byron/gitoxide")
+    (synopsis "Crate of the gitoxide project for parsing mailmap files")
+    (description "This package provides a crate of the gitoxide project for
+parsing mailmap files.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-gix-negotiate-0.2
   (package
     (name "rust-gix-negotiate")