1diff --git a/src/pikepdf/_methods.py b/src/pikepdf/_methods.py
2index 2a170c6..5ee3ba1 100644
3--- a/src/pikepdf/_methods.py
4+++ b/src/pikepdf/_methods.py
5@@ -80,7 +80,7 @@ def _mudraw(buffer, fmt) -> bytes:
6 tmp_in.flush()
7
8 proc = run(
9- ['mudraw', '-F', fmt, '-o', '-', tmp_in.name],
10+ ['@mudraw@', '-F', fmt, '-o', '-', tmp_in.name],
11 capture_output=True,
12 check=True,
13 )
14diff --git a/src/pikepdf/jbig2.py b/src/pikepdf/jbig2.py
15index 28c596b..aff3565 100644
16--- a/src/pikepdf/jbig2.py
17+++ b/src/pikepdf/jbig2.py
18@@ -28,7 +28,7 @@ def _extract_jbig2_bytes(jbig2: bytes, jbig2_globals: bytes) -> bytes:
19 output_path = Path(tmpdir) / "outfile"
20
21 args = [
22- "jbig2dec",
23+ "@jbig2dec@",
24 "--embedded",
25 "--format",
26 "png",
27@@ -88,7 +88,7 @@ class JBIG2Decoder(JBIG2DecoderInterface):
28 def _version(self) -> Version:
29 try:
30 proc = run(
31- ['jbig2dec', '--version'], stdout=PIPE, check=True, encoding='ascii'
32+ ['@jbig2dec@', '--version'], stdout=PIPE, check=True, encoding='ascii'
33 )
34 except (CalledProcessError, FileNotFoundError) as e:
35 raise DependencyError("jbig2dec - not installed or not found") from e