diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index fe564ba176..6e4be1c810 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -2039,6 +2039,41 @@ bindings to C and C++ libraries.")
         ("rust-diff" ,rust-diff-0.1)
         ("rust-shlex" ,rust-shlex-0.1))))))
 
+(define-public rust-bindgen-0.46
+  (package
+    (inherit rust-bindgen-0.50)
+    (name "rust-bindgen")
+    (version "0.46.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "bindgen" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1qclvj5pydn5camw396b0r3nz4nn3p5wpxg4fgg1favp043pyzwg"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-bitflags" ,rust-bitflags-1)
+        ("rust-cexpr" ,rust-cexpr-0.3)
+        ("rust-cfg-if" ,rust-cfg-if-0.1)
+        ("rust-clang-sys" ,rust-clang-sys-0.26)
+        ("rust-clap" ,rust-clap-2)
+        ("rust-env-logger" ,rust-env-logger-0.6)
+        ("rust-hashbrown" ,rust-hashbrown-0.1)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-peeking-take-while" ,rust-peeking-take-while-0.1)
+        ("rust-proc-macro2" ,rust-proc-macro2-0.4)
+        ("rust-quote" ,rust-quote-0.6)
+        ("rust-regex" ,rust-regex-1)
+        ("rust-which" ,rust-which-2.0))
+       #:cargo-development-inputs
+       (("rust-clap" ,rust-clap-2)
+        ("rust-diff" ,rust-diff-0.1)
+        ("rust-shlex" ,rust-shlex-0.1))))) )
+
 (define-public rust-bindgen-0.37
   (package
     (inherit rust-bindgen-0.50)