diff --git a/VERSION b/VERSION
index d4fe3220..66486863 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-Version 1.99.4 (2012-01-12 14:14:38) stable
+Version 1.99.4 (2012-01-12 14:17:04) stable
diff --git a/gluon/cache.py b/gluon/cache.py
index 1c5544e4..06d7b506 100644
--- a/gluon/cache.py
+++ b/gluon/cache.py
@@ -261,6 +261,8 @@ class CacheOnDisk(CacheAbstract):
                     os.unlink(self.shelve_name)
                 except IOError:
                     logger.warn('unable to delete file %s' % self.shelve_name)
+                except OSError:
+                    logger.warn('unable to delete file %s' % self.shelve_name)
             if locker_locked:
                 portalocker.unlock(locker)
             if locker: