diff --git a/flake.nix b/flake.nix
index 330d2ff..b354bcb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -51,8 +51,6 @@
             rustNightly
             rustfmt
           ];
-
-          RUST_SRC_PATH = pkgs.rustPlatform.rustLibSrc;
         };
       });
 }