diff --git a/util/auto_roll_logger.h b/util/auto_roll_logger.h
index 486a1eae3..ff995f0e0 100644
--- a/util/auto_roll_logger.h
+++ b/util/auto_roll_logger.h
@@ -56,6 +56,12 @@ class AutoRollLogger : public Logger {
     return logger_->GetLogFileSize();
   }
 
+  void Flush() {
+    if (logger_) {
+      logger_->Flush();
+    }
+  }
+
   virtual ~AutoRollLogger() {
   }
 
diff --git a/util/auto_roll_logger_test.cc b/util/auto_roll_logger_test.cc
index 7f75edf99..117ecd46b 100755
--- a/util/auto_roll_logger_test.cc
+++ b/util/auto_roll_logger_test.cc
@@ -308,6 +308,7 @@ TEST(AutoRollLoggerTest, LogHeaderTest) {
     Info(&logger, (kSampleMessage + ":LogHeaderTest line %d").c_str(), i);
     ++i;
   }
+  LogFlush(&logger);
 
   // verify that the new log contains all the header logs
   std::stringstream ssbuf;