diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5fd496e..1528ce5 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ project(aixlog_test)
 
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_EXTENSIONS OFF)
-set(PROJECT_VERSION "1.0.3")
+set(PROJECT_VERSION "1.0.4")
 
 
 include_directories(
diff --git a/include/aixlog.hpp b/include/aixlog.hpp
index 369c956..415cf69 100644
--- a/include/aixlog.hpp
+++ b/include/aixlog.hpp
@@ -3,7 +3,7 @@
      / _\ (  )( \/ )(  )   /  \  / __)
     /    \ )(  )  ( / (_/\(  O )( (_ \
     \_/\_/(__)(_/\_)\____/ \__/  \___/
-    version 1.0.3
+    version 1.0.4
     https://github.com/badaix/aixlog
 
     This file is part of aixlog
@@ -538,6 +538,11 @@ class Log : public std::basic_streambuf<char, std::char_traits<char> >
 	{
 	}
 
+	virtual ~Log()
+	{
+		sync();
+	}
+
 	int sync() override
 	{
 		std::lock_guard<std::recursive_mutex> lock(mutex_);