diff --git a/nixos/modules/profiles/base.nix b/nixos/modules/profiles/base.nix
index 09183ee1809..b8057cadce2 100644
--- a/nixos/modules/profiles/base.nix
+++ b/nixos/modules/profiles/base.nix
@@ -17,7 +17,6 @@
     pkgs.ddrescue
     pkgs.ccrypt
     pkgs.cryptsetup # needed for dm-crypt volumes
-    pkgs.which # 88K size
 
     # Some networking tools.
     pkgs.fuse
diff --git a/nixos/modules/programs/bash/bash.nix b/nixos/modules/programs/bash/bash.nix
index e4e264ec003..1c3c07a1c21 100644
--- a/nixos/modules/programs/bash/bash.nix
+++ b/nixos/modules/programs/bash/bash.nix
@@ -56,7 +56,7 @@ in
       */
 
       shellAliases = mkOption {
-        default = config.environment.shellAliases;
+        default = config.environment.shellAliases // { which = "type -P"; };
         description = ''
           Set of aliases for bash shell. See <option>environment.shellAliases</option>
           for an option format description.