diff --git a/pkgs/os-specific/darwin/reattach-to-user-namespace/default.nix b/pkgs/os-specific/darwin/reattach-to-user-namespace/default.nix
index 0460c516d297..60b461a80408 100644
--- a/pkgs/os-specific/darwin/reattach-to-user-namespace/default.nix
+++ b/pkgs/os-specific/darwin/reattach-to-user-namespace/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "reattach-to-user-namespace-2.4";
   src = fetchgit {
     url = "https://github.com/ChrisJohnsen/tmux-MacOSX-pasteboard.git";
-    sha256 = "1f9q1wxq764zidnx5hbdkbbyxxzfih0l0cjpgr0pxzwbmd2q6cvv";
+    sha256 = "0hrh95di5dvpynq2yfcrgn93l077h28i6msham00byw68cx0dd3z";
     rev = "2765aeab8f337c29e260a912bf4267a2732d8640";
   };
   buildFlags = "ARCHES=x86_64";