1diff --git a/src/streamlink/stream/ffmpegmux.py b/src/streamlink/stream/ffmpegmux.py
2index 136c0b81..2dd00a20 100644
3--- a/src/streamlink/stream/ffmpegmux.py
4+++ b/src/streamlink/stream/ffmpegmux.py
5@@ -83,7 +83,7 @@ class MuxedStream(Stream, Generic[TSubstreams]):
6
7
8 class FFMPEGMuxer(StreamIO):
9- __commands__: ClassVar[list[str]] = ["ffmpeg"]
10+ __commands__: ClassVar[list[str]] = ["@ffmpeg@"]
11
12 DEFAULT_LOGLEVEL = "info"
13 DEFAULT_OUTPUT_FORMAT = "matroska"