1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java b/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
index ba231a635..e25f9e11a 100644
--- a/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
@@ -103,7 +103,7 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
 
         if (deviceSession != null && channel != null && !(channel instanceof DatagramChannel)
                 && Context.getIdentityManager().lookupAttributeBoolean(
-                        deviceSession.getDeviceId(), getProtocolName() + ".ack", false, true)) {
+                        deviceSession.getDeviceId(), getProtocolName() + ".ack", false, false, true)) {
             channel.writeAndFlush(new NetworkMessage("OK1\r\n", remoteAddress));
         }