diff --git a/local-tool/Makefile b/local-tool/Makefile
index b1cfa78..984894a 100644
--- a/local-tool/Makefile
+++ b/local-tool/Makefile
@@ -264,7 +264,7 @@ vendor-ffmpeg-windows: ## 下載 ffmpeg Windows static build → vendor/ffmpeg/w
 	else \
 		echo "==> 下載 ffmpeg Windows build from BtbN..."; \
 		echo "!! WARNING: BtbN 為 GPL build；license 由 PM 最終確認 !!"; \
-		curl -fL -o /tmp/ffmpeg-win.zip "$(FFMPEG_URL_WINDOWS)"; \
+		curl -fL -o vendor/ffmpeg/windows/ffmpeg-win.zip "$(FFMPEG_URL_WINDOWS)"; \
 		PY=""; \
 		for candidate in "$$VISIONA_PYTHON" "py -3" python3 python; do \
 			[ -z "$$candidate" ] && continue; \
@@ -274,12 +274,12 @@ vendor-ffmpeg-windows: ## 下載 ffmpeg Windows static build → vendor/ffmpeg/w
 		done; \
 		if [ -z "$$PY" ]; then echo "ERROR: 需要真實 python 來解壓 zip（WindowsApps stub 無法使用）"; exit 1; fi; \
 		echo "==> 使用 $$PY 解壓 ffmpeg zip"; \
-		$$PY -c "import zipfile, shutil; z=zipfile.ZipFile('/tmp/ffmpeg-win.zip'); \
+		$$PY -c "import zipfile, shutil; z=zipfile.ZipFile('vendor/ffmpeg/windows/ffmpeg-win.zip'); \
 members=[n for n in z.namelist() if n.endswith('/bin/ffmpeg.exe')]; \
 assert members, 'ffmpeg.exe not found in zip'; \
 src=z.open(members[0]); dst=open('vendor/ffmpeg/windows/ffmpeg.exe','wb'); \
 shutil.copyfileobj(src, dst); src.close(); dst.close(); z.close()" || { echo "ERROR: python 解壓失敗"; exit 1; }; \
-		rm -f /tmp/ffmpeg-win.zip; \
+		rm -f vendor/ffmpeg/windows/ffmpeg-win.zip; \
 		[ -f vendor/ffmpeg/windows/ffmpeg.exe ] || { echo "ERROR: ffmpeg.exe 沒被寫出"; exit 1; }; \
 		echo "==> ffmpeg.exe 大小：$$(du -sh vendor/ffmpeg/windows/ffmpeg.exe | cut -f1)"; \
 	fi