diff --git a/classes/studyplan.php b/classes/studyplan.php
index 68092f1..96dcfa1 100644
--- a/classes/studyplan.php
+++ b/classes/studyplan.php
@@ -249,7 +249,7 @@ class studyplan {
             'aggregation_info' => $this->aggregator->basic_model(),
             'pages' => $pages,
             // Next line is for development debugging only.
-            "progress" => (\rand(0,100) / 100),
+            //"progress" => (\rand(0,100) / 100),
         ];
     }