diff --git a/pkgs/applications/networking/gmailctl/default.nix b/pkgs/applications/networking/gmailctl/default.nix
index 579b945ee37e..9fc1e25a92d7 100644
--- a/pkgs/applications/networking/gmailctl/default.nix
+++ b/pkgs/applications/networking/gmailctl/default.nix
@@ -6,6 +6,8 @@
 
 buildGoModule rec {
   pname = "gmailctl";
+  # on an unstable version because of https://github.com/mbrt/gmailctl/issues/232
+  # and https://github.com/mbrt/gmailctl/commit/484bb689866987580e0576165180ef06375a543f
   version = "unstable-2022-03-24";
 
   src = fetchFromGitHub {