diff --git a/code/client/munkilib/appleupdates.py b/code/client/munkilib/appleupdates.py
index b82ee520..526c4a83 100644
--- a/code/client/munkilib/appleupdates.py
+++ b/code/client/munkilib/appleupdates.py
@@ -120,7 +120,7 @@ class AppleUpdates(object):
 
     def __init__(self):
         self._managed_install_dir = munkicommon.pref('ManagedInstallDir')
-        
+
         real_cache_dir = os.path.join(self._managed_install_dir, 'swupd')
         if os.path.exists(real_cache_dir):
             if not os.path.isdir(real_cache_dir):
@@ -139,15 +139,15 @@ class AppleUpdates(object):
             if os.path.exists(self.cache_dir):
                 # there should not be a file or directory at that path!
                 # move it
-                new_name = os.path.join('/tmp', 
-                    ('munki_swupd_cache_moved_%s' % 
+                new_name = os.path.join('/tmp',
+                    ('munki_swupd_cache_moved_%s' %
                         time.strftime('%Y.%m.%d.%H.%M.%S')))
                 os.rename(self.cache_dir, new_name)
             os.symlink(real_cache_dir, self.cache_dir)
         except (OSError, IOError), err:
             # error in setting up the cache directories
             raise Error('Could not configure cache directory: %s' % err)
-                            
+
         self.temp_cache_dir = os.path.join(self.cache_dir, 'mirror')
         self.local_catalog_dir = os.path.join(
             self.cache_dir, LOCAL_CATALOG_DIR_REL_PATH)
@@ -391,7 +391,7 @@ class AppleUpdates(object):
         return list_of_localizations[0]
 
     def GetDistributionForProductKey(self, product_key):
-        '''Returns the path to a distibution file from the local cache for the 
+        '''Returns the path to a distibution file from the local cache for the
         given product_key.'''
         try:
             catalog = FoundationPlist.readPlist(self.local_catalog_path)
@@ -421,7 +421,7 @@ class AppleUpdates(object):
 
         try:
             dom = minidom.parse(distfile)
-        except expat.ExpatError:
+        except (expat.ExpatError, IOError):
             return []
 
         must_close_app_ids = []
@@ -1124,7 +1124,7 @@ class AppleUpdates(object):
             last_result_code = self.GetSoftwareUpdatePref('LastResultCode') or 0
             if last_result_code > 2:
                 retcode = last_result_code
-            
+
             if results['failures']:
                 return 1