1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java b/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
index fae73d931..706307d89 100644
--- a/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
@@ -276,7 +276,7 @@ public class MegastekProtocolDecoder extends BaseProtocolDecoder {
             .groupEnd("?").text(",")
             .number("(d+)?,")                    // rfid
             .number("([01])(d)?").optional()     // charge and belt status
-            .expression("[^,]*,")
+            .expression("[^,]*,").optional()
             .number("(d+)?,")                    // battery
             .expression("([^,]*)[,;]")           // alert
             .any()