diff --git a/default.nix b/default.nix
index b9d5163..c12ed15 100644
--- a/default.nix
+++ b/default.nix
@@ -1,37 +1,46 @@
-{
-  pkgs ? import <nixpkgs> {}
-}:
-  with pkgs;
-	let
-		openbsd_src = fetchFromGitHub {
-			owner = "rpki-client";
-			repo = "rpki-client-openbsd";
-			# rev = "c1363a74cc718dbbaee38488a8598cd1c26f74f0";
-			rev = "rpki-client-8.2";
-			hash = "sha256-oErUjZn/a/Ka70+Z8Wb2L7UIulGPjF81bYAQ2wPvWfo=";
-		};
-	in stdenv.mkDerivation rec {
-		inherit openbsd_src;
-		buildInputs = [ git libressl expat zlib automake autoconf git libtool ];
-		name = "rpki-client";
-		version = "8.2";
-		src = fetchFromGitHub {
-			owner = "rpki-client";
-			repo = "rpki-client-portable";
-			rev = version;
-			hash = "sha256-oErUjZn/a/Ka70+Z8Wb2L7UIulGPjF81bYAQ2wPvWfo=";
-		};
-		unpackPhase = ''
-			echo ${src}
-			pwd
-			mkdir -p openbsd
-			cp -R ${openbsd_src}/* openbsd
-			cp -R ${src}/* .
-			chmod 700 -R .
-			sed -i 's|dir=`pwd`|dir=${src}|g' openbsd/update.sh
-		'';
-		configurePhase = ''
-			./autogen.sh
-			${src}/configure --prefix=$out
-		'';
-		}
+{ pkgs ? import <nixpkgs> { } }:
+
+with pkgs;
+
+stdenv.mkDerivation rec {
+
+  name = "rpki-client";
+  version = "8.2";
+
+  src = fetchFromGitHub {
+    owner = "rpki-client";
+    repo = "rpki-client-portable";
+    rev = version;
+    hash = "sha256-oErUjZn/a/Ka70+Z8Wb2L7UIulGPjF81bYAQ2wPvWfo=";
+  };
+
+  openbsd_src = fetchFromGitHub {
+    owner = "rpki-client";
+    repo = "rpki-client-openbsd";
+    rev = "rpki-client-8.2";
+    hash = "sha256-zC3vbQLLWgImS+lYNWbHzkLrZTJvgPfH+W+FiSnH8Aw=";
+  };
+
+  buildInputs = [
+    git
+    libressl
+    expat
+    zlib
+    automake
+    autoconf
+    libtool
+    rsync
+  ];
+
+  unpackPhase = ''
+    mkdir -p openbsd
+    cp -R ${openbsd_src}/* openbsd
+    cp -R ${src}/* .
+    chmod 700 -R .
+  '';
+
+  configurePhase = ''
+    ./autogen.sh
+    ./configure --prefix=$out
+  '';
+}