diff --git a/modules/fish/default.nix b/modules/fish/default.nix
index e463477..f03f75f 100644
--- a/modules/fish/default.nix
+++ b/modules/fish/default.nix
@@ -175,12 +175,10 @@
         end
       '';
       setup_path = /* fish */ ''
-        set -l os uname
-
         fish_add_path /run/wrappers/bin
         fish_add_path /run/current-system/sw/bin
 
-        if test "$os" = "Darwin"
+        if test "$(uname)" = "Darwin"
           fish_add_path /nix/var/nix/profiles/default/bin
           setup_homebrew
         end