diff --git a/pkgs/tools/filesystems/xtreemfs/default.nix b/pkgs/tools/filesystems/xtreemfs/default.nix
index 146663cc88b8..eed43270e18d 100644
--- a/pkgs/tools/filesystems/xtreemfs/default.nix
+++ b/pkgs/tools/filesystems/xtreemfs/default.nix
@@ -34,9 +34,9 @@ stdenv.mkDerivation {
     makeWrapper
     python3
     stripJavaArchivesHook
+    which
   ];
   buildInputs = [
-    which
     attr
   ];