diff --git a/flake.nix b/flake.nix
index e42514d..a0d008a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,11 +44,7 @@
           strictDeps = true;
           __structuredAttrs = true;
 
-          src = lib.sourceFilesBySuffices ./. [
-            "Cargo.toml"
-            "Cargo.lock"
-            "*.rs"
-          ];
+          src = ./.;
         };
 
         crate =
@@ -63,7 +59,7 @@
             commonArgs
             // {
               inherit name;
-              cargoLock.lockFile = "${commonArgs.src}/Cargo.lock";
+              cargoLock.lockFile = ./Cargo.lock;
 
               nativeBuildInputs = commonArgs.nativeBuildInputs ++ [
                 pkgs.autoPatchelfHook