diff --git a/plugins/speedup.c b/plugins/speedup.c
index 16ae4fa2..b617699d 100644
--- a/plugins/speedup.c
+++ b/plugins/speedup.c
@@ -77,6 +77,9 @@ static void speedup_remove(struct ofono_modem *modem)
 
 	ofono_modem_set_data(modem, NULL);
 
+	/* Cleanup after hot-unplug */
+	g_at_chat_unref(data->aux);
+
 	g_free(data);
 }