diff --git a/src/pikepdf/_methods.py b/src/pikepdf/_methods.py
index 2a170c6..5ee3ba1 100644
--- a/src/pikepdf/_methods.py
+++ b/src/pikepdf/_methods.py
@@ -80,7 +80,7 @@ def _mudraw(buffer, fmt) -> bytes:
         tmp_in.flush()
 
         proc = run(
-            ['mudraw', '-F', fmt, '-o', '-', tmp_in.name],
+            ['@mudraw@', '-F', fmt, '-o', '-', tmp_in.name],
             capture_output=True,
             check=True,
         )
diff --git a/src/pikepdf/jbig2.py b/src/pikepdf/jbig2.py
index be390a1..3818ec3 100644
--- a/src/pikepdf/jbig2.py
+++ b/src/pikepdf/jbig2.py
@@ -31,7 +31,7 @@ def extract_jbig2(
         output_path = Path(tmpdir) / "outfile"
 
         args = [
-            "jbig2dec",
+            "@jbig2dec@",
             "--embedded",
             "--format",
             "png",
@@ -64,7 +64,7 @@ def _extract_jbig2_bytes(jbig2: bytes, jbig2_globals: bytes) -> bytes:
         output_path = Path(tmpdir) / "outfile"
 
         args = [
-            "jbig2dec",
+            "@jbig2dec@",
             "--embedded",
             "--format",
             "png",
@@ -100,7 +100,7 @@ def extract_jbig2_bytes(
 
 def _check_jbig2dec_available() -> None:  # pragma: no cover
     try:
-        proc = run(['jbig2dec', '--version'], stdout=PIPE, check=True, encoding='ascii')
+        proc = run(['@jbig2dec@', '--version'], stdout=PIPE, check=True, encoding='ascii')
     except (CalledProcessError, FileNotFoundError) as e:
         raise DependencyError("jbig2dec - not installed or not found") from e
     else: