diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index b2e33ea10b..6f09c8f353 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2016, 2017 Theodoros Foradis <theodoros@foradis.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -696,7 +697,7 @@ (define-public propeller-load
 (define-public spin2cpp
   (package
     (name "spin2cpp")
-    (version "3.6.3")
+    (version "3.6.4")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/totalspectrum/spin2cpp/"
@@ -704,7 +705,7 @@ (define-public spin2cpp
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0v5vzh69bp1r2byrpz12rql1w24ff2v9msr31596zq6hd6n82lnh"))))
+                "05qak187sn0xg7vhrxw27b19xhmid1b8ab8kax3gv0faavzablfw"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f ;; The tests assume that a micro-controller is connected.