1 files changed, 5 insertions, 3 deletions
diff --git a/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java
index a0e9b199c..e3e1ae961 100644
--- a/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java
@@ -18,6 +18,8 @@ package org.traccar.protocol;
 
 import org.traccar.Protocol;
 import org.traccar.StringProtocolEncoder;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
 
 public class Tk103ProtocolEncoder extends StringProtocolEncoder {
@@ -41,12 +43,12 @@ public class Tk103ProtocolEncoder extends StringProtocolEncoder {
     @Override
     protected Object encodeCommand(Command command) {
 
-        boolean alternative = forceAlternative || getIdentityManager().lookupAttributeBoolean(
-                command.getDeviceId(), getProtocolName() + ".alternative", false, false, true);
+        boolean alternative = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()), command.getDeviceId());
 
         initDevicePassword(command, "123456");
 
-        if (alternative) {
+        if (alternative || forceAlternative) {
             switch (command.getType()) {
                 case Command.TYPE_CUSTOM:
                     return formatAlt(command, "%s", Command.KEY_DATA);