diff --git a/booking.studygroups_admin.inc b/booking.studygroups_admin.inc
index 07d3819..37fb137 100644
--- a/booking.studygroups_admin.inc
+++ b/booking.studygroups_admin.inc
@@ -109,7 +109,7 @@ function booking_studygroups_define_form($node, &$form_state, $create, $editid =
 			'#type' => 'hidden',
 			'#value' => $editid,
 		);
-		watchdog('booking_debug', '<pre>Editing study group definition:\n@info</pre>', array ('@info' => print_r($data, TRUE)));								
+		watchdog('booking_debug', "<pre>Editing study group definition:\n@info</pre>", array ('@info' => print_r($data, TRUE)));								
 	}	
 	
 	if(!isset($form_state['storage']['confirm']))	{