diff --git a/packages/zzkt/soupault.scm b/packages/zzkt/soupault.scm
index 98c52dc..c3cfaa7 100644
--- a/packages/zzkt/soupault.scm
+++ b/packages/zzkt/soupault.scm
@@ -530,8 +530,8 @@ currently designed for Unicode Standard 3.2.")
      (sha256
       (base32 "11dpr0aprqqjgb2n4j4czpw3l0bc8dzy1jqmp2qz3xkih31k241p"))))
    (build-system dune-build-system)
-   ;; (arguments
-   ;;   `(#:package "lwt"))
+   (arguments
+    `(#:package "lwt.unix"))
     (native-inputs
      (list ocaml-cppo ocaml-base pkg-config))
     (inputs