diff --git a/garlic/pp/rplot.nix b/garlic/pp/rplot.nix
index aabc4b5..343e2f6 100644
--- a/garlic/pp/rplot.nix
+++ b/garlic/pp/rplot.nix
@@ -28,6 +28,7 @@ in stdenv.mkDerivation {
   installPhase = ''
     mkdir -p $out
     cd $out
+    ln -s ${dataset} input.json
     Rscript --vanilla ${script} ${dataset}
   '';
 }