diff --git a/Modules/Scorm2004/classes/class.ilObjSCORM2004LearningModule.php b/Modules/Scorm2004/classes/class.ilObjSCORM2004LearningModule.php
index 3c513f8e2e55..7dcc0f33de51 100755
--- a/Modules/Scorm2004/classes/class.ilObjSCORM2004LearningModule.php
+++ b/Modules/Scorm2004/classes/class.ilObjSCORM2004LearningModule.php
@@ -958,7 +958,7 @@ public static function _getMaxScoreForUser(int $a_id, int $a_user): ?float
                 $row = $ilDB->fetchAssoc($res);
                 if ($row['c_max'] != null) {
                     $set++;
-                    $max = $row['c_max'];
+                    $max = floatval($row['c_max']);
                 }
             }
         }