diff --git a/Makefile b/Makefile
index 2e497792..9c51c2a7 100644
--- a/Makefile
+++ b/Makefile
@@ -83,7 +83,7 @@ BUNDLE_FLAGS = ${BUNDLE_FLAGS-yes}
 # Binaries/Scripts
 #
 
-MKBUNDLE = $(PYTHON) $(ROOTDIR)/support/mkbundle
+MKBUNDLE = $(PYTHON)3 $(ROOTDIR)/support/mkbundle
 
 #
 # Debug/Output
diff --git a/support/mkbundle b/support/mkbundle
index 5487c093..83eaf412 100755
--- a/support/mkbundle
+++ b/support/mkbundle
@@ -6,9 +6,9 @@
 import os, sys, re
 import gzip
 try:
-  from io import StringIO
-except ImportError:
-  from cStringIO import StringIO
+  from cStringIO import StringIO as BytesIO
+except:
+  from io import BytesIO
 from optparse import OptionParser
 
 # Add reverse path split
@@ -38,7 +38,7 @@ if opts.output:
 depf = None
 if opts.deps:
   depf = open(opts.deps, 'w')
-  print >>depf, '%s: \\' % opts.output
+  depf.write('%s: \\\n' % opts.output)
 
 # Build heirarchy
 root  = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '..'))
@@ -68,17 +68,18 @@ def output_file ( path, name, idx, next = -1 ):
   p = os.path.join(root, path, name);
 
   # Dep file
-  if depf: print >>depf, '  %s\\' % p
+  if depf:
+    depf.write('  %s\\\n' % p)
 
   # First the data
-  print >>outf, '// FILE : %s %s %d %d' % (path, name, idx, next)
-  print >>outf, 'static const uint8_t filebundle_data_%06d[] = {' % idx,
+  outf.write('/* FILE : %s %s %d %d */\n' % (path, name, idx, next))
+  outf.write('static const uint8_t filebundle_data_%06d[] = {' % idx)
   o = -1
   d = open(p, 'rb').read()
   if opts.gzip:
     o = len(d)
     l = opts.gzlevel
-    t = StringIO()
+    t = BytesIO()
     if l < 0: l = 1
     if l > 9: l = 9
     z = gzip.GzipFile(filename=name, mode='w', compresslevel=l, fileobj=t)
@@ -88,40 +89,42 @@ def output_file ( path, name, idx, next = -1 ):
     t.close()
   i = 0
   for b in d:
-    if not (i % 12): print >>outf, '\n  ',
-    print >>outf, '0x%02x,' % ord(b),
+    if not (i % 12): outf.write('\n  ')
+    if type(b) == str:
+      b = ord(b)
+    outf.write('0x%02x,' % b)
     i = i + 1
-  print >>outf, ''
-  print >>outf, '};'
+  outf.write('\n')
+  outf.write('};\n')
   
-  print >>outf, 'static filebundle_entry_t filebundle_entry_%06d = {' % idx
-  print >>outf, '  .type    = FB_FILE,'
-  print >>outf, '  .name    = "%s",'  % name
-  print >>outf, '  .next    = %s,' % n
-  print >>outf, '  {'
-  print >>outf, '    .f.size  = %d,' % len(d)
-  print >>outf, '    .f.orig  = %d,' % o
-  print >>outf, '    .f.data  = filebundle_data_%06d' % idx
-  print >>outf, '  },'
-  print >>outf, '};'
-  print >>outf, ''
+  outf.write('static filebundle_entry_t filebundle_entry_%06d = {\n' % idx)
+  outf.write('  .type    = FB_FILE,\n')
+  outf.write('  .name    = "%s",\n'  % name)
+  outf.write('  .next    = %s,\n' % n)
+  outf.write('  {\n')
+  outf.write('    .f.size  = %d,\n' % len(d))
+  outf.write('    .f.orig  = %d,\n' % o)
+  outf.write('    .f.data  = filebundle_data_%06d\n' % idx)
+  outf.write('  },\n')
+  outf.write('};\n')
+  outf.write('\n')
 
 # Output a directory
 def output_dir ( path, name, idx, child, count, next = -1 ):
   n = 'NULL'
   if next >= 0: n = '&filebundle_entry_%06d' % next
-  print >>outf, '// DIR: %s %s %d %d %d %d'\
-  % (path, name, idx, child, count, next)
-  print >>outf, 'static filebundle_entry_t filebundle_entry_%06d = {' % idx
-  print >>outf, '  .type    = FB_DIR,'
-  print >>outf, '  .name    = "%s",'  % name
-  print >>outf, '  .next    = %s,' % n
-  print >>outf, '  {'
-  print >>outf, '    .d.count = %d,' % count
-  print >>outf, '    .d.child = &filebundle_entry_%06d' % child
-  print >>outf, '  },'
-  print >>outf, '};'
-  print >>outf, ''
+  outf.write('/* DIR: %s %s %d %d %d %d */\n' \
+             % (path, name, idx, child, count, next))
+  outf.write('static filebundle_entry_t filebundle_entry_%06d = {\n' % idx)
+  outf.write('  .type    = FB_DIR,\n')
+  outf.write('  .name    = "%s",\n'  % name)
+  outf.write('  .next    = %s,\n' % n)
+  outf.write('  {\n')
+  outf.write('    .d.count = %d,\n' % count)
+  outf.write('    .d.child = &filebundle_entry_%06d\n' % child)
+  outf.write('  },\n')
+  outf.write('};\n')
+  outf.write('\n')
 
 # Create output
 def add_entry ( ents, path = "", name = "", idx = -1, next = -1 ):
@@ -154,14 +157,14 @@ def add_entry ( ents, path = "", name = "", idx = -1, next = -1 ):
   return idx
 
 # Output header
-print >>outf, '// Auto-generated - DO NOT EDIT'
-print >>outf, '// COMMAND: [%s]' % (' '.join(sys.argv))
-print >>outf, ''
-print >>outf, '#include "filebundle.h"'
-print >>outf, ''
+outf.write('/* Auto-generated - DO NOT EDIT */\n')
+outf.write('/* COMMAND: [%s] */\n' % (' '.join(sys.argv)))
+outf.write('\n')
+outf.write('#include "filebundle.h"\n')
+outf.write('\n')
 
 # Output entries
 idx = add_entry(ents)
 
 # Output top link
-print >>outf, 'filebundle_entry_t *filebundle_root = &filebundle_entry_%06d;'  % idx
+outf.write('filebundle_entry_t *filebundle_root = &filebundle_entry_%06d;\n' % idx)