diff --git a/src/pikepdf/_methods.py b/src/pikepdf/_methods.py
index 70cdc9e..c3a14d0 100644
--- a/src/pikepdf/_methods.py
+++ b/src/pikepdf/_methods.py
@@ -190,7 +190,7 @@ def _mudraw(buffer, fmt) -> bytes:
         tmp_in.flush()
 
         proc = run(
-            ['mudraw', '-F', fmt, '-o', '-', tmp_in.name],
+            ['@mudraw@', '-F', fmt, '-o', '-', tmp_in.name],
             stdout=PIPE,
             stderr=PIPE,
             check=True,
diff --git a/src/pikepdf/jbig2.py b/src/pikepdf/jbig2.py
index 80cc910..64f6d31 100644
--- a/src/pikepdf/jbig2.py
+++ b/src/pikepdf/jbig2.py
@@ -25,7 +25,7 @@ def extract_jbig2(
         global_path = Path(tmpdir) / "global"
         output_path = Path(tmpdir) / "outfile"
 
-        args = ["jbig2dec", "-e", "-o", os.fspath(output_path)]
+        args = ["@jbig2dec@", "-e", "-o", os.fspath(output_path)]
 
         # Get the raw stream, because we can't decode im_obj - that is why we are here
         # (Strictly speaking we should remove any non-JBIG2 filters if double encoded)