diff --git a/NTPClient.cpp b/NTPClient.cpp
index ddb76fb..caa30d1 100755
--- a/NTPClient.cpp
+++ b/NTPClient.cpp
@@ -204,7 +204,7 @@ void NTPClient::sendNTPPacket() {
   this->_udp->endPacket();
 }
 
-void NTPClient::setRandomPort() {
+void NTPClient::setRandomPort(long minValue, long maxValue) {
   randomSeed(analogRead(0));
-  this->_port = random(1, 65534);
+  this->_port = random(minValue, maxValue);
 }
\ No newline at end of file
diff --git a/NTPClient.h b/NTPClient.h
index 6498e82..226f54a 100755
--- a/NTPClient.h
+++ b/NTPClient.h
@@ -47,7 +47,7 @@ class NTPClient {
      /**
      * Set random local port
      */
-    void setRandomPort();
+    void setRandomPort(long minValue, long maxValue);
 
     /**
      * Starts the underlying UDP client with the default local port