diff --git a/flake.nix b/flake.nix
index 0af558c..4e50d25 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,7 +14,7 @@
         pkgs = nixpkgs.legacyPackages.${system};
         toolchain = fenix.packages.${system}.fromToolchainFile {
           file = ./rust-toolchain.toml;
-          sha256 = sha256-gh/xTkxKHL4eiRXzWv8KP7vfjSk61Iq48x47BEDFgfk=;
+          sha256 = "sha256-gh/xTkxKHL4eiRXzWv8KP7vfjSk61Iq48x47BEDFgfk=";
         };
       in
       {