diff --git a/slidenado.nix b/slidenado.nix
index 0efbee1..d05c3a0 100644
--- a/slidenado.nix
+++ b/slidenado.nix
@@ -15,6 +15,7 @@ let
   presentation = name:
     stdenv.mkDerivation {
       name = "slidenado-${name}";
+      src = <slidenado>;
       buildInputs = [ texlive.combined.scheme-basic ];
       makeFlags = [ "${name}.pdf" ];
       postInstall = ''