diff --git a/trunk/src/app/srs_app_source.cpp b/trunk/src/app/srs_app_source.cpp
index 5705a13ac..7be4c6bf6 100755
--- a/trunk/src/app/srs_app_source.cpp
+++ b/trunk/src/app/srs_app_source.cpp
@@ -1519,6 +1519,8 @@ SrsMetaCache::SrsMetaCache()
 SrsMetaCache::~SrsMetaCache()
 {
     dispose();
+    srs_freep(vformat);
+    srs_freep(aformat);
 }
 
 void SrsMetaCache::dispose()