1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
index 3c1fd256b..da7f6b5a6 100644
--- a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
@@ -103,7 +103,7 @@ public class AutoTrackProtocolDecoder extends BaseProtocolDecoder {
 
         switch (type) {
             case MSG_LOGIN_REQUEST:
-                String imei = ByteBufUtil.hexDump(buf.readBytes(8));
+                String imei = ByteBufUtil.hexDump(buf.readSlice(8));
                 DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
                 if (deviceSession == null) {
                     return null;