diff --git a/tox.ini b/tox.ini
index a2311c8..6d32dee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,7 @@ isolated_build = true
 package = editable
 deps =
     pytest
+    aprsd
 commands =
     # Use -bb to enable BytesWarnings as error to catch str/bytes misuse.
     # Use -Werror to treat warnings as errors.