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-rw-r--r--src/main/java/org/traccar/protocol/WatchProtocolDecoder.java4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
index 9b2bc33bf..c5431be8d 100644
--- a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
@@ -1,5 +1,5 @@
/*
- * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -57,7 +57,7 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
.expression("([EW])?,")
.number("(d+.?d*),") // speed
.number("(d+.?d*),") // course
- .number("(d+.?d*),") // altitude
+ .number("(-?d+.?d*),") // altitude
.number("(d+),") // satellites
.number("(d+),") // rssi
.number("(d+),") // battery