diff --git a/src/main/java/us/ihmc/robotDataLogger/logger/ZEDSVOLoggerManager.java b/src/main/java/us/ihmc/robotDataLogger/logger/ZEDSVOLoggerManager.java
index f04987c..4acdcc6 100644
--- a/src/main/java/us/ihmc/robotDataLogger/logger/ZEDSVOLoggerManager.java
+++ b/src/main/java/us/ihmc/robotDataLogger/logger/ZEDSVOLoggerManager.java
@@ -77,7 +77,8 @@ private void onZEDSDKAnnounceMessage(ZEDSDKAnnounce message)
       if (zedLoggers.containsKey(announceHash))
       {
          ZEDSVOLogger zedSVOLogger = zedLoggers.get(announceHash);
-         zedSVOLogger.synchronize(message);
+         if (message.getControllerTimestamp() != -1)
+            zedSVOLogger.synchronize(message);
 
          if (zedSVOLogger.isClosed())
          {