diff --git a/NTPClient.cpp b/NTPClient.cpp
index 3014718..76e030b 100644
--- a/NTPClient.cpp
+++ b/NTPClient.cpp
@@ -119,6 +119,10 @@ String NTPClient::getFormattedTime() {
   return hoursStr + ":" + minuteStr + ":" + secondStr;
 }
 
+void NTPClient::end() {
+  this->_udp->stop();
+}
+
 void NTPClient::sendNTPPacket() {
   // set all bytes in the buffer to 0
   memset(this->_packetBuffer, 0, NTP_PACKET_SIZE);
diff --git a/NTPClient.h b/NTPClient.h
index 0af383b..c14af9f 100644
--- a/NTPClient.h
+++ b/NTPClient.h
@@ -56,4 +56,9 @@ class NTPClient {
      * @return time as raw seconds
      */
     unsigned long getRawTime();
+
+    /**
+     * Stops the underlying UDP client
+     */
+    void end();
 };
diff --git a/keywords.txt b/keywords.txt
index d64a538..5570658 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -9,6 +9,7 @@ NTPClient         KEYWORD1
 #######################################
 
 begin             KEYWORD2
+end               KEYWORD2
 update            KEYWORD2
 forceUpdate       KEYWORD2
 getDay            KEYWORD2