diff --git a/lib/config/custom-build-vm.nix b/lib/config/custom-build-vm.nix
index 6eec80e..9101d3e 100644
--- a/lib/config/custom-build-vm.nix
+++ b/lib/config/custom-build-vm.nix
@@ -11,7 +11,7 @@
     };
 
     virtualisation =
-      let config = {
+      let vmConfig = {
         boot.loader.efi.efiSysMountPoint = lib.mkForce "/boot";
 
         virtualisation = {
@@ -28,8 +28,8 @@
         };
       };
       in {
-        vmVariant = config;
-        vmVariantWithBootLoader = config;
+        vmVariant = vmConfig;
+        vmVariantWithBootLoader = vmConfig;
       };
   };
 }