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-rw-r--r--src/org/traccar/protocol/Gl200ProtocolDecoder.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
index a6da38ef4..0927f53fd 100644
--- a/src/org/traccar/protocol/Gl200ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
@@ -312,7 +312,7 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
private static final Pattern PATTERN_BASIC = new PatternBuilder()
.text("+").expression("(?:RESP|BUFF)").text(":")
.expression("GT...,")
- .number("(?:[0-9A-Z]{2}xxxx)?,") // protocol version
+ .number("(?:[0-9A-Z]{2}xxxx)?,").optional() // protocol version
.number("(d{15}|x{14}),") // imei
.any()
.number("(d{1,2})?,") // hdop