diff --git a/src/udp_wrap.cc b/src/udp_wrap.cc
index cd4c58eca..741e4ed46 100644
--- a/src/udp_wrap.cc
+++ b/src/udp_wrap.cc
@@ -365,6 +365,7 @@ void UDPWrap::OnRecv(uv_udp_t* handle,
 
   if (nread == -1) {
     SetErrno(uv_last_error(uv_default_loop()));
+    ReleaseMemory(buf.base, NULL);
   }
   else {
     Local<Object> rinfo = Object::New();