1diff --git a/r128gain/__init__.py b/r128gain/__init__.py
2index 79a5cbd..d8f13ba 100755
3--- a/r128gain/__init__.py
4+++ b/r128gain/__init__.py
5@@ -86,7 +86,7 @@ def get_ffmpeg_lib_versions(ffmpeg_path: Optional[str] = None) -> Dict[str, int]
6 Example: 0x3040100 for FFmpeg 3.4.1
7 """
8 r = collections.OrderedDict()
9- cmd = (ffmpeg_path or "ffmpeg", "-version")
10+ cmd = (ffmpeg_path or "@ffmpeg@/bin/ffmpeg", "-version")
11 output_str = subprocess.run(cmd, check=True, stdout=subprocess.PIPE, universal_newlines=True).stdout
12 output_lines = output_str.splitlines()
13 lib_version_regex = re.compile(r"^\s*(lib[a-z]+)\s+([0-9]+).\s*([0-9]+).\s*([0-9]+)\s+")
14@@ -194,7 +194,7 @@ def get_r128_loudness( # noqa: C901
15 ffmpeg.output(*output_streams, os.devnull, **additional_ffmpeg_args, f="null").global_args(
16 "-hide_banner", "-nostats"
17 ),
18- cmd=ffmpeg_path or "ffmpeg",
19+ cmd=ffmpeg_path or "@ffmpeg@/bin/ffmpeg",
20 )
21
22 # run
23@@ -885,7 +885,7 @@ def cl_main() -> None:
24 arg_parser.add_argument(
25 "-f",
26 "--ffmpeg-path",
27- default=shutil.which("ffmpeg"),
28+ default="@ffmpeg@/bin/ffmpeg",
29 help="""Full file path of ffmpeg executable (only needed if not in PATH).
30 If not specified, autodetect""",
31 )