diff --git a/lib/config/custom-build-vm.nix b/lib/config/custom-build-vm.nix
index 7e11bef..bbdd00f 100644
--- a/lib/config/custom-build-vm.nix
+++ b/lib/config/custom-build-vm.nix
@@ -2,7 +2,7 @@
 let
   packageName = "custom-nixos-vm";
 
-  mergedSystemOption =
+  mergedBuildOption =
     with options.system;
     lib.mergeDefinitions
       build.loc
@@ -15,7 +15,7 @@ let
             build.definitionsWithLocations)
         (item: { inherit (item) file value; }));
 
-  vanillaVM = mergedSystemOption.mergedValue.vm;
+  vanillaVM = mergedBuildOption.mergedValue.vm;
 in {
   options =
   let