diff --git a/gpt_bin/gpt_ini2bin.py b/gpt_bin/gpt_ini2bin.py
index 21530563..558377ed 100755
--- a/gpt_bin/gpt_ini2bin.py
+++ b/gpt_bin/gpt_ini2bin.py
@@ -2,6 +2,7 @@
 
 import uuid
 import struct
+import os
 import sys
 if sys.version_info < (3, 0, 1):
     import ConfigParser
@@ -27,7 +28,8 @@
 def zero_pad(s, size):
     if (len(s) > size):
         print('error', len(s))
-    s += '\0' * (size - len(s))
+#    s += '\0' * (size - len(s))
+    s += b'\x00\x00' * (size - len(s))
     return s
 
 def copy_section(cfg, a, b):
@@ -139,9 +141,9 @@ def main():
     gpt_in = sys.argv[1]
 
     if sys.version_info < (3, 0, 1):
-        cfg = ConfigParser.SafeConfigParser()
+        cfg = ConfigParser.ConfigParser()
     else:
-        cfg = configparser.SafeConfigParser(strict=False)
+        cfg = configparser.ConfigParser(strict=False)
 
     cfg.read(gpt_in)
 
@@ -155,6 +157,7 @@ def main():
     npart = len(part)
 
     out = sys.stdout
+    out = os.fdopen(sys.stdout.fileno(), 'wb')
     out.write(struct.pack('<I', magic))
     out.write(struct.pack('<I', start_lba))
     out.write(struct.pack('<I', npart))