diff --git a/README.md b/README.md
index db14e1789..60b236e2d 100755
--- a/README.md
+++ b/README.md
@@ -389,6 +389,7 @@ Supported operating systems and hardware:
 
 ## History
 
+* v1.0, 2015-03-26, fix hls aac adts bug, in aac mux. 1.0.31.
 * <strong>v1.0, 2015-03-19, [1.0r3 release(1.0.30)](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0r3) released. 59511 lines.</strong>
 * v1.0, 2015-03-17, remove the osx for 1.0.30.
 * v1.0, 2015-02-17, the join maybe failed, should use a variable to ensure thread terminated. 1.0.28.
diff --git a/trunk/src/app/srs_app_hls.cpp b/trunk/src/app/srs_app_hls.cpp
index be90a1219..b98cb46a1 100644
--- a/trunk/src/app/srs_app_hls.cpp
+++ b/trunk/src/app/srs_app_hls.cpp
@@ -1192,7 +1192,7 @@ int SrsHlsCache::cache_audio(SrsAvcAacCodec* codec, SrsCodecSample* sample)
         // 6.2 Audio Data Transport Stream, ADTS
         // in aac-iso-13818-7.pdf, page 26.
         // fixed 7bytes header
-        static u_int8_t adts_header[7] = {0xff, 0xf1, 0x00, 0x00, 0x00, 0x0f, 0xfc};
+        static u_int8_t adts_header[7] = {0xff, 0xf9, 0x00, 0x00, 0x00, 0x0f, 0xfc};
         /*
         // adts_fixed_header
         // 2B, 16bits
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 10f705ee2..dc9137355 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       1
 #define VERSION_MINOR       0
-#define VERSION_REVISION    30 
+#define VERSION_REVISION    31 
 
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"