diff --git a/src/NTPClient.cpp b/src/NTPClient.cpp
index 74d4d47..9352050 100644
--- a/src/NTPClient.cpp
+++ b/src/NTPClient.cpp
@@ -133,6 +133,8 @@ bool NTPClient::update() {
       this->begin();
     }
 
+    while(this->_udp->parsePacket() != 0) this->_udp->flush();
+
     this->sendNTPPacket();
   }