diff --git a/oletools/rtfobj.py b/oletools/rtfobj.py
index 98559f5..fce9c5d 100644
--- a/oletools/rtfobj.py
+++ b/oletools/rtfobj.py
@@ -79,8 +79,9 @@ http://www.decalage.info/python/oletools
 # 2017-09-06       PL: - fixed issue #196: \pxe is not a destination
 # 2018-01-11       CH: - speedup RTF parsing (PR #244)
 # 2018-02-01      JRM: - fixed issue #251: \bin without argument
+# 2018-04-09       PL: - fixed issue #280: OLE Package were not detected on Python 3
 
-__version__ = '0.52'
+__version__ = '0.52.5'
 
 # ------------------------------------------------------------------------------
 # TODO:
@@ -664,7 +665,7 @@ class RtfObjParser(RtfParser):
                 rtfobj.oledata_size = obj.data_size
                 rtfobj.oledata = obj.data
                 rtfobj.is_ole = True
-                if obj.class_name.lower() == 'package':
+                if obj.class_name.lower() == b'package':
                     opkg = oleobj.OleNativeStream(bindata=obj.data,
                                                   package=True)
                     rtfobj.filename = opkg.filename
@@ -904,7 +905,9 @@ def process_file(container, filename, data, output_dir=None, save_object=False):
 
 def main():
     # print banner with version
-    print ('rtfobj %s - http://decalage.info/python/oletools' % __version__)
+    python_version = '%d.%d.%d' % sys.version_info[0:3]
+    print ('rtfobj %s on Python %s - http://decalage.info/python/oletools' %
+           (__version__, python_version))
     print ('THIS IS WORK IN PROGRESS - Check updates regularly!')
     print ('Please report any issue at https://github.com/decalage2/oletools/issues')
     print ('')
diff --git a/setup.py b/setup.py
index ba10d54..6209515 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@ import os, fnmatch
 #--- METADATA -----------------------------------------------------------------
 
 name         = "oletools"
-version      = '0.52.4'
+version      = '0.52.5'
 desc         = "Python tools to analyze security characteristics of MS Office and OLE files (also called Structured Storage, Compound File Binary Format or Compound Document File Format), for Malware Analysis and Incident Response #DFIR"
 long_desc    = open('oletools/README.rst').read()
 author       = "Philippe Lagadec"