diff --git a/nixos/modules/system/boot/binfmt.nix b/nixos/modules/system/boot/binfmt.nix
index bf1688feb19..5172371d0af 100644
--- a/nixos/modules/system/boot/binfmt.nix
+++ b/nixos/modules/system/boot/binfmt.nix
@@ -137,14 +137,8 @@ let
       magicOrExtension = ''\x00asm'';
       mask = ''\xff\xff\xff\xff'';
     };
-    x86_64-windows = {
-      magicOrExtension = "exe";
-      recognitionType = "extension";
-    };
-    i686-windows = {
-      magicOrExtension = "exe";
-      recognitionType = "extension";
-    };
+    x86_64-windows.magicOrExtension = "MZ";
+    i686-windows.magicOrExtension = "MZ";
   };
 
 in {