diff --git a/ChangeLog b/ChangeLog
index 60e9061f..3515954e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-08-07  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>
+
+	Initialized _directIOAllowed
+	* src/MultiDiskAdaptor.cc
+
 2008-08-07  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>
 
 	Fixed memory leak
diff --git a/src/MultiDiskAdaptor.cc b/src/MultiDiskAdaptor.cc
index 0d27ebb0..cf74b4b9 100644
--- a/src/MultiDiskAdaptor.cc
+++ b/src/MultiDiskAdaptor.cc
@@ -145,7 +145,9 @@ void DiskWriterEntry::disableDirectIO()
 }
 
 MultiDiskAdaptor::MultiDiskAdaptor():
-  pieceLength(0), _maxOpenFiles(DEFAULT_MAX_OPEN_FILES) {}
+  pieceLength(0),
+  _maxOpenFiles(DEFAULT_MAX_OPEN_FILES),
+  _directIOAllowed(false) {}
 
 MultiDiskAdaptor::~MultiDiskAdaptor() {}