diff --git a/src/ukify/ukify.py b/src/ukify/ukify.py
index ab5e29706c..9bfa1ecb78 100755
--- a/src/ukify/ukify.py
+++ b/src/ukify/ukify.py
@@ -1369,8 +1369,10 @@ def make_uki(opts: UkifyConfig) -> None:
                 print(f'{linux} is not a valid PE file and cannot be decompressed either', file=sys.stderr)
             else:
                 print(f'{linux} is compressed and cannot be loaded by UEFI, decompressing', file=sys.stderr)
-                linux = Path(tempfile.NamedTemporaryFile(prefix='linux-decompressed').name)
-                linux.write_bytes(decompressed)
+                linux_decompressed = tempfile.NamedTemporaryFile(prefix='linux-decompressed')
+                linux_decompressed.write(decompressed)
+                linux_decompressed.flush()
+                linux = Path(linux_decompressed.name)
 
     if linux and sign_args_present:
         assert opts.signtool is not None