diff --git a/pkgs/applications/networking/irc/weechat/scripts/default.nix b/pkgs/applications/networking/irc/weechat/scripts/default.nix
index 2a524bc4efa..21038a2fa96 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/default.nix
@@ -8,4 +8,6 @@
   weechat-matrix-bridge = callPackage ./weechat-matrix-bridge {
     inherit (luaPackages) cjson;
   };
+
+  wee-slack = callPackage ./wee-slack { };
 }
diff --git a/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix b/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix
new file mode 100644
index 00000000000..1b6e5215744
--- /dev/null
+++ b/pkgs/applications/networking/irc/weechat/scripts/wee-slack/default.nix
@@ -0,0 +1,29 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  name = "wee-slack-${version}";
+  version = "2.1.1";
+
+  src = fetchFromGitHub {
+    repo = "wee-slack";
+    owner = "wee-slack";
+    rev = "v${version}";
+    sha256 = "05caackz645aw6kljmiihiy7xz9jld8b9blwpmh0cnaihavgj1wc";
+  };
+
+  passthru.scripts = [ "wee_slack.py" ];
+
+  installPhase = ''
+    mkdir -p $out/share
+    cp wee_slack.py $out/share/wee_slack.py
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/wee-slack/wee-slack;
+    license = licenses.mit;
+    maintainers = with maintainers; [ ma27 ];
+    description = ''
+      A WeeChat plugin for Slack.com. Synchronizes read markers, provides typing notification, search, etc..
+    '';
+  };
+}