diff --git a/ai/Dockerfile b/ai/Dockerfile
index b6ed67d..1413696 100644
--- a/ai/Dockerfile
+++ b/ai/Dockerfile
@@ -53,7 +53,7 @@ urllib.request.urlretrieve(url + '.json', base + '/en_US-ryan-high.onnx.json')
 PYEOF
 
 # ---------- Patch tts_tool.py: replace Edge TTS fallback with Piper ----------
-COPY ai/patch_tts_tool.py /tmp/patch_tts_tool.py
+COPY patch_tts_tool.py /tmp/patch_tts_tool.py
 RUN /opt/hermes/.venv/bin/python3 /tmp/patch_tts_tool.py && rm /tmp/patch_tts_tool.py
 
 # ---------- Runtime ----------