diff --git a/libwyag.py b/libwyag.py
index 7721d0c..37593bd 100644
--- a/libwyag.py
+++ b/libwyag.py
@@ -472,7 +472,7 @@ def tree_parse_one(raw, start=0):
     mode = raw[start:x]
     if len(mode) == 5:
         # Normalize to six bytes.
-        mode = b" " + mode
+        mode = b"0" + mode
 
     # Find the NULL terminator of the path
     y = raw.find(b'\x00', x)