diff --git a/src/java/pt/lsts/neptus/mra/replay/MraVehiclePosHud.java b/src/java/pt/lsts/neptus/mra/replay/MraVehiclePosHud.java
index 52458df7ce..adf5df2627 100644
--- a/src/java/pt/lsts/neptus/mra/replay/MraVehiclePosHud.java
+++ b/src/java/pt/lsts/neptus/mra/replay/MraVehiclePosHud.java
@@ -96,6 +96,11 @@ protected void loadIndex() {
         int msgType = index.getDefinitions().getMessageId("EstimatedState");
         int lastIndex = 0;
 
+        int indexFirtsMsg = index.getFirstMessageOfType(msgType);
+        if (indexFirtsMsg < 0) {
+            return;
+        }
+
         for (double time = startTime; time < endTime; time++) {
             int i = index.getMessageAtOrAfer(msgType, 0xFF, lastIndex, time);
             if (i != -1) {