diff --git a/pkgs/development/python-modules/pytado/default.nix b/pkgs/development/python-modules/pytado/default.nix
index 2e597f01e882..a1c70b4c2052 100644
--- a/pkgs/development/python-modules/pytado/default.nix
+++ b/pkgs/development/python-modules/pytado/default.nix
@@ -7,6 +7,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "wmalgadey";
     repo = pname;
+    # Upstream hasn't tagged this release yet. This commit fixes the build.
     rev = "79a5dfdf75cd9a3e1a1ee8a8ff0d08923aebda7b";
     sha256 = "14xdfw4913g4j4h576hjbigm7fiw8k0dc8s98gh2ag9xrc2ifgr0";
   };