diff --git a/src/Rtsp/RtspMuxer.cpp b/src/Rtsp/RtspMuxer.cpp
index 6f5e4f8f..0cb0d2d2 100644
--- a/src/Rtsp/RtspMuxer.cpp
+++ b/src/Rtsp/RtspMuxer.cpp
@@ -14,7 +14,7 @@
 using namespace std;
 using namespace toolkit;
 
-#define ENABLE_NTP_STAMP 0
+#define ENABLE_NTP_STAMP 1
 
 namespace mediakit {