diff --git a/gui/default.nix b/gui/default.nix
index 381de41..e1e02f9 100644
--- a/gui/default.nix
+++ b/gui/default.nix
@@ -84,6 +84,7 @@ with lib; {
         govulncheck
         hpi
         pcsctools
+        plan9port
         promnesia
         rage
         rpr