diff --git a/modules/nixos/user/default.nix b/modules/nixos/user/default.nix
index 3d0d65f..d5609ed 100644
--- a/modules/nixos/user/default.nix
+++ b/modules/nixos/user/default.nix
@@ -73,8 +73,8 @@ in
         }".source =
           cfg.icon;
       };
-      extraOptions.programs.bash.bashrcExtra = ''
-        [[ $PS1 ]] && exec env fish -l
+      extraOptions.programs.bash.initExtra = ''
+        [[ $WANT_BASH ]] || exec env fish -l
       '';
     };