diff --git a/NTPClient.cpp b/NTPClient.cpp
old mode 100644
new mode 100755
index 6133508..f2d484f
--- a/NTPClient.cpp
+++ b/NTPClient.cpp
@@ -35,7 +35,13 @@ NTPClient::NTPClient(UDP& udp, const char* poolServerName) {
   this->_poolServerName = poolServerName;
 }
 
-NTPClient::NTPClient(UDP& udp, const char* poolServerName, long timeOffset) {
+NTPClient::NTPClient(UDP& udp, IPAddress poolServerIP) {
+  this->_udp            = &udp;
+  this->_poolServerIP = poolServerIP;
+  this->_poolServerName = NULL;
+}
+
+NTPClient::NTPClient(UDP& udp, const char* poolServerName, int timeOffset) {
   this->_udp            = &udp;
   this->_timeOffset     = timeOffset;
   this->_poolServerName = poolServerName;
diff --git a/NTPClient.h b/NTPClient.h
old mode 100644
new mode 100755
index 02d8752..08c6ee1
--- a/NTPClient.h
+++ b/NTPClient.h
@@ -30,6 +30,7 @@ class NTPClient {
     NTPClient(UDP& udp);
     NTPClient(UDP& udp, long timeOffset);
     NTPClient(UDP& udp, const char* poolServerName);
+    NTPClient(UDP& udp, IPAddress poolServerIP);
     NTPClient(UDP& udp, const char* poolServerName, long timeOffset);
     NTPClient(UDP& udp, const char* poolServerName, long timeOffset, unsigned long updateInterval);