diff --git a/nix/shimmeringmoon.nix b/nix/shimmeringmoon.nix
index 9b6ed7d..b12e5af 100644
--- a/nix/shimmeringmoon.nix
+++ b/nix/shimmeringmoon.nix
@@ -26,10 +26,10 @@ rustPlatform.buildRustPackage {
 
   SHIMMERING_FONT_DIR = shimmering-fonts;
   SHIMMERING_CC_DIR = cc-data;
+  SHIMMERING_PRIVATE_CONFIG_DIR = private-config;
 
   nativeBuildInputs = [
     pkg-config
-    rust-toolchain
     makeWrapper
   ];