diff --git a/README.md b/README.md
index 81957c549..5d23e8dcb 100755
--- a/README.md
+++ b/README.md
@@ -273,7 +273,7 @@ For previous versions, please read:
 
 ## V2 changes
 
-* v2.0, 2020-01-08, Merge [#1554][bug #1554], support logrotate copytruncate. 2.0.271
+* v2.0, 2020-01-08, Merge [#1554][bug #1554], support logrotate copytruncate. 2.0.272
 * v2.0, 2020-01-05, Merge [#1551][bug #1551], fix memory leak in RTSP stack. 2.0.270
 * v2.0, 2019-12-26, For [#1488][bug #1488], pass client ip to http callback. 2.0.269
 * v2.0, 2019-12-23, Fix [srs-librtmp #22](https://github.com/ossrs/srs-librtmp/issues/22), parse vhost splited by single seperator. 2.0.268
diff --git a/trunk/src/app/srs_app_log.cpp b/trunk/src/app/srs_app_log.cpp
index d22ab38c1..4d73ebf8e 100644
--- a/trunk/src/app/srs_app_log.cpp
+++ b/trunk/src/app/srs_app_log.cpp
@@ -319,6 +319,9 @@ void SrsFastLog::open_log_file()
         return;
     }
 
-    fd = ::open(filename.c_str(), O_RDWR | O_CREAT | O_APPEND);
+    fd = ::open(filename.c_str(),
+        O_RDWR | O_CREAT | O_APPEND,
+        S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH
+    );
 }