diff --git a/pkgs/applications/networking/mailreaders/mblaze/default.nix b/pkgs/applications/networking/mailreaders/mblaze/default.nix
index fc9001e59e32..2ac32f34304f 100644
--- a/pkgs/applications/networking/mailreaders/mblaze/default.nix
+++ b/pkgs/applications/networking/mailreaders/mblaze/default.nix
@@ -1,36 +1,30 @@
-{ stdenv, lib, fetchFromGitHub, fetchpatch, libiconv, ruby ? null }:
+{ stdenv, lib, fetchFromGitHub, installShellFiles, libiconv, ruby ? null }:
 
 stdenv.mkDerivation rec {
   pname = "mblaze";
-  version = "0.5.1";
+  version = "1.0";
 
+  nativeBuildInputs = [ installShellFiles ];
   buildInputs = [ ruby ] ++ lib.optionals stdenv.isDarwin [ libiconv ];
 
   src = fetchFromGitHub {
-    owner = "chneukirchen";
+    owner = "leahneukirchen";
     repo = "mblaze";
     rev = "v${version}";
-    sha256 = "11x548dl2jy9cmgsakqrzfdq166whhk4ja7zkiaxrapkjmkf6pbh";
+    sha256 = "0hxy3mjjv4hg856sl1r15fdmqaw4s9c26b3lidsd5x0kpqy601ai";
   };
 
-  patches = [
-    (fetchpatch {
-      url = "https://github.com/leahneukirchen/mblaze/commit/53151f4f890f302291eb8d3375dec4f8ecb66ed7.patch";
-      sha256 = "1mcyrh053iiyzdhgm09g5h3a77np496whnc7jr4agpk1nkbcpfxc";
-    })
-  ];
-
   makeFlags = [ "PREFIX=$(out)" ];
 
   postInstall = ''
-    install -Dm644 -t $out/share/zsh/site-functions contrib/_mblaze
+    installShellCompletion contrib/_mblaze
   '' + lib.optionalString (ruby != null) ''
     install -Dt $out/bin contrib/msuck contrib/mblow
   '';
 
   meta = with lib; {
-    homepage = "https://github.com/chneukirchen/mblaze";
-    description = "Unix utilities to deal with Maildir";
+    homepage = "https://github.com/leahneukirchen/mblaze";
+    description = "Unix utilities for processing and interacting with mail messages which are stored in maildir folders";
     license = licenses.cc0;
     platforms = platforms.all;
     maintainers = [ maintainers.ajgrf ];