diff --git a/lib/models/resources/ResourceBooking.class.php b/lib/models/resources/ResourceBooking.class.php
index 1d531787af5f096519e1f4482927ffa07318ccd5..8c82b3589230cfb5094efd009957ac03e5a588fd 100644
--- a/lib/models/resources/ResourceBooking.class.php
+++ b/lib/models/resources/ResourceBooking.class.php
@@ -125,7 +125,7 @@ class ResourceBooking extends SimpleORMap implements PrivacyObject, Studip\Calen
             StudipLog::log(
                 'RES_ASSIGN_SEM',
                 $this->resource_id,
-                $this->range_id,
+                $this->course_id,
                 $this->__toString(),
                 null,
                 $GLOBALS['user']->id
@@ -149,7 +149,7 @@ class ResourceBooking extends SimpleORMap implements PrivacyObject, Studip\Calen
             StudipLog::log(
                 'RES_ASSIGN_DEL_SEM',
                 $this->resource_id,
-                $this->range_id,
+                $this->course_id,
                 $this->__toString(),
                 null,
                 $GLOBALS['user']->id