diff --git a/flake.nix b/flake.nix
index 111fbaf..6a74c7f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -20,7 +20,7 @@
         mkdir $out/bin -p
         mkdir $out/src -p
         cp start-server $out/bin/jank-client
-        cp . $out/src
+        cp . $out/src -r
       '';
     };
   in {