diff --git a/.package-lists/guix-nyxt-manifest.scm b/.package-lists/guix-nyxt-manifest.scm
index 33e6d524..99d02dc0 100644
--- a/.package-lists/guix-nyxt-manifest.scm
+++ b/.package-lists/guix-nyxt-manifest.scm
@@ -34,6 +34,7 @@
     "cl-dexador"
     "cl-enchant"
     "cl-fset"
+    "cl-hu.dwim.defclass-star"
     "cl-iolib"
     "cl-local-time"
     "cl-log4cl"