1 files changed, 1 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/AlematicsFrameDecoder.java b/src/org/traccar/protocol/AlematicsFrameDecoder.java
index daac868c0..be7666657 100644
--- a/src/org/traccar/protocol/AlematicsFrameDecoder.java
+++ b/src/org/traccar/protocol/AlematicsFrameDecoder.java
@@ -38,7 +38,7 @@ public class AlematicsFrameDecoder extends LineBasedFrameDecoder {
         }
 
         if (buf.getUnsignedShort(buf.readerIndex()) == 0xFAF8) {
-            ByteBuf heartbeat = buf.readBytes(12);
+            ByteBuf heartbeat = buf.readRetainedSlice(12);
             if (ctx != null && ctx.channel() != null) {
                 ctx.channel().writeAndFlush(new NetworkMessage(heartbeat, ctx.channel().remoteAddress()));
             }