diff --git a/src/java/jssc/SerialPort.java b/src/java/jssc/SerialPort.java
index 7dfd827..b7fd849 100644
--- a/src/java/jssc/SerialPort.java
+++ b/src/java/jssc/SerialPort.java
@@ -151,14 +151,15 @@ public class SerialPort {
         else {
             throw new SerialPortException(portName, "openPort()", SerialPortException.TYPE_NULL_NOT_PERMITTED);//since 2.1.0 -> NULL port name fix
         }
-        //since 0.9.0 ->
-        if(portHandle == -1){
+        if(portHandle == -1){//since 0.9.0 ->
             throw new SerialPortException(portName, "openPort()", SerialPortException.TYPE_PORT_BUSY);
         }
         else if(portHandle == -2){
             throw new SerialPortException(portName, "openPort()", SerialPortException.TYPE_PORT_NOT_FOUND);
-        }
-        //<- since 0.9.0
+        }//<- since 0.9.0
+        else if(portHandle == -3){//since 2.2.0 ->
+            throw new SerialPortException(portName, "openPort()", SerialPortException.TYPE_PERMISSION_DENIED);
+        }//<- since 2.2.0
         portOpened = true;
         return true;
     }