diff --git a/flake.nix b/flake.nix
index d9ae497..181e88a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,6 +22,7 @@
           rustfmt
           rust-analyzer
         ] ++ (prev.nativeBuildInputs or [ ]);
+        RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
       });
     });
   };