diff --git a/src/calibre/constants.py b/src/calibre/constants.py
index 67278efb25..c06876f692 100644
--- a/src/calibre/constants.py
+++ b/src/calibre/constants.py
@@ -2,7 +2,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2008, Kovid Goyal kovid@kovidgoyal.net'
 __docformat__ = 'restructuredtext en'
 __appname__   = 'calibre'
-__version__   = '0.6.36'
+__version__   = '0.6.37'
 __author__    = "Kovid Goyal <kovid@kovidgoyal.net>"
 
 import re
diff --git a/src/calibre/ebooks/pdf/reflow.py b/src/calibre/ebooks/pdf/reflow.py
index 42c16225d2..9f98147032 100644
--- a/src/calibre/ebooks/pdf/reflow.py
+++ b/src/calibre/ebooks/pdf/reflow.py
@@ -439,7 +439,7 @@ class Page(object):
         # closer to the avg number of cols in the set, if equal use larger
         # region)
         # merge contiguous regions that can contain each other
-        absorbed = set([])
+        '''absorbed = set([])
         found = True
         while found:
             found = False
@@ -454,6 +454,8 @@ class Page(object):
                             break
                     prev = None if i == 0 else i-1
                     next = j if self.regions[j] not in regions else None
+        '''
+        pass