diff --git a/src/org/hwo/io/NewSerialPort/NewSerialPort.java b/src/org/hwo/io/NewSerialPort/NewSerialPort.java
index 1a8b819..f3023da 100644
--- a/src/org/hwo/io/NewSerialPort/NewSerialPort.java
+++ b/src/org/hwo/io/NewSerialPort/NewSerialPort.java
@@ -320,6 +320,11 @@ public class NewSerialPort {
 			}
 			return nRead;
 		}
+		
+		@Override
+		public void close() throws IOException {
+			NewSerialPort.this.close();
+		}
 	}
 	
 	public class NewSerialPortOutputStream extends OutputStream
@@ -388,6 +393,10 @@ public class NewSerialPort {
 			write(b, 0, b.length);
 		}
 		
+		@Override
+		public void close() throws IOException {
+			NewSerialPort.this.close();
+		}
 	}	
 	
 	static public String[] getPortNames(){