diff --git a/common/bash-is-needed.nix b/common/bash-is-needed.nix
index a61f779..ec12c4d 100644
--- a/common/bash-is-needed.nix
+++ b/common/bash-is-needed.nix
@@ -23,15 +23,16 @@ with lib;
   };
 
   config = {
-    system.activationScripts.binbash = if config.environment.binbash.enable
-      then ''
+    system.activationScripts.binbash = mkMerge [
+      (mkIf config.environment.binbash.enable ''
         mkdir -m 0755 -p /bin
         ln -sfn ${config.environment.binbash.bash}/bin/bash /bin/.bash.tmp
-        mv /bin/.bash.tmp /bin/bash # atomically replace /usr/bin/env
-      ''
-      else ''
+        mv /bin/.bash.tmp /bin/bash # atomically replace
+      '')
+      (mkIf (! config.environment.binbash.enable) ''
         rm -f /bin/bash
-      '';
+      '')
+    ];
   };
 }