diff --git a/feature/motheure-simple/source/loop.php b/feature/motheure-simple/source/loop.php
index 72bedc1..acd6983 100644
--- a/feature/motheure-simple/source/loop.php
+++ b/feature/motheure-simple/source/loop.php
@@ -104,9 +104,7 @@
 		/* [2] Main loop
 		=========================================================*/
 		/* (1) Log action to default log file */
-		$f_data->fwrite( json_encode([
-			floor( $stop_ts - $start_ts )
-		]).PHP_EOL );
+		$f_data->fwrite( "[" . floor( $stop_ts - $start_ts ) ."]\n"  );
 		slog("Motor stop", 'motheure-simple:loop', 'motheure');
 
 		/* (2) Return status */