diff --git a/gps-track.rsc b/gps-track.rsc
index 2e6d50f..8517778 100644
--- a/gps-track.rsc
+++ b/gps-track.rsc
@@ -8,38 +8,43 @@
 # track gps data by sending json data to http server
 # https://git.eworm.de/cgit/routeros-scripts/about/doc/gps-track.md
 
-:local 0 [ :jobname ];
 :global GlobalFunctionsReady;
 :while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
 
-:global GpsTrackUrl;
-:global Identity;
+:local Main do={
+  :local ScriptName [ :tostr $1 ];
 
-:global LogPrintExit2;
-:global ScriptLock;
-:global WaitFullyConnected;
+  :global GpsTrackUrl;
+  :global Identity;
 
-$ScriptLock $0;
-$WaitFullyConnected;
+  :global LogPrintExit2;
+  :global ScriptLock;
+  :global WaitFullyConnected;
 
-:local CoordinateFormat [ /system/gps/get coordinate-format ];
-:local Gps [ /system/gps/monitor once as-value ];
+  $ScriptLock $ScriptName;
+  $WaitFullyConnected;
 
-:if ($Gps->"valid" = true) do={
-  :do {
-    /tool/fetch check-certificate=yes-without-crl $GpsTrackUrl output=none \
-      http-method=post http-header-field=({ "Content-Type: application/json" }) \
-      http-data=("{" . \
-        "\"lat\":\"" . ($Gps->"latitude") . "\"," . \
-        "\"lon\":\"" . ($Gps->"longitude") . "\"," . \
-        "\"identity\":\"" . $Identity . "\"" . \
-      "}") as-value;
-    $LogPrintExit2 debug $0 ("Sending GPS data in " . $CoordinateFormat . " format: " . \
-      "lat: " . ($Gps->"latitude") . " " . \
-      "lon: " . ($Gps->"longitude")) false;
-  } on-error={
-    $LogPrintExit2 warning $0 ("Failed sending GPS data!") false;
+  :local CoordinateFormat [ /system/gps/get coordinate-format ];
+  :local Gps [ /system/gps/monitor once as-value ];
+
+  :if ($Gps->"valid" = true) do={
+    :do {
+      /tool/fetch check-certificate=yes-without-crl $GpsTrackUrl output=none \
+        http-method=post http-header-field=({ "Content-Type: application/json" }) \
+        http-data=("{" . \
+          "\"lat\":\"" . ($Gps->"latitude") . "\"," . \
+          "\"lon\":\"" . ($Gps->"longitude") . "\"," . \
+          "\"identity\":\"" . $Identity . "\"" . \
+        "}") as-value;
+      $LogPrintExit2 debug $ScriptName ("Sending GPS data in " . $CoordinateFormat . " format: " . \
+        "lat: " . ($Gps->"latitude") . " " . \
+        "lon: " . ($Gps->"longitude")) false;
+    } on-error={
+      $LogPrintExit2 warning $ScriptName ("Failed sending GPS data!") false;
+    }
+  } else={
+    $LogPrintExit2 debug $ScriptName ("GPS data not valid.") false;
   }
-} else={
-  $LogPrintExit2 debug $0 ("GPS data not valid.") false;
 }
+
+$Main [ :jobname ];