diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index cd6c09bfd8..1f27d49e78 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -68006,6 +68006,26 @@ crate.")
 crate.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-windows-aarch64-gnullvm-0.42
+  (package
+    (name "rust-windows-aarch64-gnullvm")
+    (version "0.42.0")
+    (source (origin
+              (method url-fetch)
+              (uri (crate-uri "windows-aarch64-gnullvm" version))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "17m1p753qk02r25afg31dxym4rpy7kpr0z8nwl5f1jzhyrqsmlj1"))))
+    (build-system cargo-build-system)
+    (arguments
+     (list #:skip-build? #t))
+    (home-page "https://github.com/microsoft/windows-rs")
+    (synopsis "Code gen support for the windows crate")
+    (description
+     "This package provides code gen support for the windows crate.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-windows-aarch64-msvc-0.36
   (package
     (name "rust-windows-aarch64-msvc")