Index: trunk/core/kernel/utility/event.php
===================================================================
diff -u -N -r4670 -r4689
--- trunk/core/kernel/utility/event.php	(.../event.php)	(revision 4670)
+++ trunk/core/kernel/utility/event.php	(.../event.php)	(revision 4689)
@@ -287,11 +287,11 @@
 				return $perm_section;
 			}
 			
-			$main_prefix = $this->Application->GetTopmostPrefix($this->Prefix);
-			$section = $this->Application->getUnitOption($main_prefix.'.main', 'PermSection');
+			$top_prefix = $this->getEventParam('top_prefix');
+			$section = $this->Application->getUnitOption($top_prefix.'.main', 'PermSection');
 							
 			if (!$section) {
-				trigger_error('Permission <b>section</b> not specified for prefix <b>'.$main_prefix.'</b>', E_USER_ERROR);
+				trigger_error('Permission <b>section</b> not specified for prefix <b>'.$top_prefix.'</b>', E_USER_ERROR);
 			}
 			return $section;
 		}