diff --git a/gui/default.nix b/gui/default.nix
index 9f57722..9dd84a7 100644
--- a/gui/default.nix
+++ b/gui/default.nix
@@ -92,6 +92,7 @@ in with lib; {
         promnesia
         hpi
         black
+        zeal
       ];
 
     })