diff --git a/src/burp/BurpExtender.java b/src/burp/BurpExtender.java
index fcd7f03..8cfa697 100644
--- a/src/burp/BurpExtender.java
+++ b/src/burp/BurpExtender.java
@@ -100,7 +100,7 @@ private void processInteraction(IBurpCollaboratorInteraction interaction) {
         message +=  "</b>";
 
         try {
-            long interactionTime = new SimpleDateFormat("yyyy-MMM-dd HH:mm:ss z").parse(interaction.getProperty("time_stamp")).getTime();
+            long interactionTime = new SimpleDateFormat("yyyy-MMM-dd HH:mm:ss.SSS z").parse(interaction.getProperty("time_stamp")).getTime();
             long mill = interactionTime - metaReq.getTimestamp();
             int seconds = (int) (mill / 1000) % 60;
             int minutes = (int) ((mill / (1000 * 60)) % 60);