diff --git a/pkgs/applications/networking/instant-messengers/slack/default.nix b/pkgs/applications/networking/instant-messengers/slack/default.nix
index 23571658a24b..bb2f64212fc0 100644
--- a/pkgs/applications/networking/instant-messengers/slack/default.nix
+++ b/pkgs/applications/networking/instant-messengers/slack/default.nix
@@ -41,7 +41,7 @@
 
 let
   inherit (stdenv.hostPlatform) system;
-  throwSystem = throw "Unsupported system: ${system}";
+  throwSystem = throw "slack does not support system: ${system}";
 
   pname = "slack";