diff --git a/trunk/src/app/srs_app_st.cpp b/trunk/src/app/srs_app_st.cpp
index 3e21e468cd..eaa2fcdd6e 100755
--- a/trunk/src/app/srs_app_st.cpp
+++ b/trunk/src/app/srs_app_st.cpp
@@ -342,7 +342,6 @@ SrsWaitGroup::SrsWaitGroup()
 
 SrsWaitGroup::~SrsWaitGroup()
 {
-    wait();
     srs_cond_destroy(done_);
 }