diff --git a/homes/julian/features/fish/default.nix b/homes/julian/features/fish/default.nix
index e9006d9..91b96f0 100644
--- a/homes/julian/features/fish/default.nix
+++ b/homes/julian/features/fish/default.nix
@@ -69,7 +69,7 @@ with lib; {
       run = ''
         set -l channel nixpkgs
 
-        if test "$argv[1]" = -u -o "$argv[1]" = --unstable
+        if test "$argv[1]" = -u; or test "$argv[1]" = --unstable
             set channel github:NixOS/nixpkgs/nixpkgs-unstable
             set -e argv[1]
         end
@@ -78,7 +78,7 @@ with lib; {
       shell = ''
         set -l channel nixpkgs
 
-        if test "$argv[1]" = -u -o "$argv[1]" = --unstable
+        if test "$argv[1]" = -u; or test "$argv[1]" = --unstable
             set channel github:NixOS/nixpkgs/nixpkgs-unstable
             set -e argv[1]
         end