diff --git a/src/main/java/modbuspal/main/ModbusPalPane.java b/src/main/java/modbuspal/main/ModbusPalPane.java
index cb5a4ce..0e185d5 100644
--- a/src/main/java/modbuspal/main/ModbusPalPane.java
+++ b/src/main/java/modbuspal/main/ModbusPalPane.java
@@ -502,7 +502,7 @@ private void initComponents() {
         tcpIpSettingsPanel.add(jLabel1, gridBagConstraints);
 
         portTextField.setText("502");
-        portTextField.setPreferredSize(new java.awt.Dimension(40, 20));
+        portTextField.setPreferredSize(new java.awt.Dimension(80, 20));
         gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.insets = new java.awt.Insets(5, 2, 5, 5);
         tcpIpSettingsPanel.add(portTextField, gridBagConstraints);