diff --git a/nixos/common/software/cli/weechat.nix b/nixos/common/software/cli/weechat.nix
index 8af55605..4492b9d9 100644
--- a/nixos/common/software/cli/weechat.nix
+++ b/nixos/common/software/cli/weechat.nix
@@ -3,6 +3,11 @@
         weechat
     ];
 
+    # Per the README, set matrix-sso-helper in your $PATH
+    environment.interactiveShellInit  = ''
+        alias matrix_sso_helper=${pkgs.weechatScripts.weechat-matrix}/bin/matrix_sso_helper
+    '';
+
     nixpkgs.overlays = [
         (
             self: super: {