diff --git a/inc/class.section.php b/inc/class.section.php
--- a/inc/class.section.php
+++ b/inc/class.section.php
@@ -286,7 +286,7 @@ class Section
       /* Move the instructor (old $this->prof) property to our SectionMeeting children */
       foreach ($this->meetings as $meeting)
       {
-	$meeting->instructor_set();
+	$meeting->instructor_set($this->prof);
 	unset($this->prof);
       }
   }