diff --git a/pkgs/tools/security/tpm-luks/default.nix b/pkgs/tools/security/tpm-luks/default.nix
index 4aab72cb5df..6063cdecc67 100644
--- a/pkgs/tools/security/tpm-luks/default.nix
+++ b/pkgs/tools/security/tpm-luks/default.nix
@@ -1,13 +1,14 @@
-{ lib, stdenv, fetchgit, autoreconfHook, gawk, trousers, cryptsetup, openssl }:
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, gawk, trousers, cryptsetup, openssl }:
 
 stdenv.mkDerivation {
   pname = "tpm-luks";
   version = "unstable-2015-07-11";
 
-  src = fetchgit {
-    url = "https://github.com/momiji/tpm-luks";
+  src = fetchFromGitHub {
+    owner = "momiji";
+    repo = "tpm-luks";
     rev = "c9c5b7fdddbcdac1cd4d2ea6baddd0617cc88ffa";
-    sha256 = "1ms2v57f13r9km6mvf9rha5ndmlmjvrz3mcikai6nzhpj0nrjz0w";
+    sha256 = "sha256-HHyZLZAXfmuimpHV8fOWldZmi4I5uV1NnSmP4E7ZQtc=";
   };
 
   patches = [