diff --git a/tests/default.nix b/tests/default.nix
index 2abbf09af..ef73d8944 100644
--- a/tests/default.nix
+++ b/tests/default.nix
@@ -170,6 +170,7 @@ let
         "nix"
         "nix-index"
         "nix-your-shell"
+        "notmuch"
         "npth"
         "nushell"
         "ollama"