diff --git a/TTS.gd b/TTS.gd
index 9656f17..4dd4c21 100644
--- a/TTS.gd
+++ b/TTS.gd
@@ -47,3 +47,6 @@ func singular_or_plural(count, singular, plural):
         return singular
     else:
         return plural
+
+func _exit_tree():
+    tts.free()