diff --git a/swad_changelog.h b/swad_changelog.h
index c9ceb3324..0f0f87127 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -600,7 +600,7 @@ TODO: DNI de un estudiante sale err
 
 TODO: BUG: Cuando un tipo de grupo sólo tiene un grupo, inscribirse es voluntario, el estudiante sólo puede pertenecer a un grupo, y se inscribe en él, debería poder desapuntarse. Ahora no puede.
 
-	Version 20.13:    Feb 08, 2021  New module timeline_favourite. (304994 lines)
+	Version 20.13:    Feb 08, 2021  New module timeline_favourite. (304971 lines)
 	Version 20.12.1:  Feb 08, 2021  Code refactoring in timeline. (304900 lines)
 	Version 20.12:    Feb 08, 2021  Code refactoring in timeline. (304882 lines)
 	Version 20.11.1:  Feb 07, 2021  Fixed bugs in assigments pagination. (304880 lines)
diff --git a/swad_timeline_favourite.c b/swad_timeline_favourite.c
index 18e2dc223..a63257ac4 100644
--- a/swad_timeline_favourite.c
+++ b/swad_timeline_favourite.c
@@ -25,32 +25,8 @@
 /*********************************** Headers *********************************/
 /*****************************************************************************/
 
-#define _GNU_SOURCE 		// For asprintf
-#include <linux/limits.h>	// For PATH_MAX
-#include <stdio.h>		// For asprintf
-#include <stdlib.h>		// For malloc and free
-#include <string.h>		// For string functions
-#include <sys/types.h>		// For time_t
-
-#include "swad_announcement.h"
-#include "swad_box.h"
-#include "swad_constant.h"
 #include "swad_database.h"
-#include "swad_exam_announcement.h"
-#include "swad_figure.h"
-#include "swad_follow.h"
-#include "swad_form.h"
-#include "swad_forum.h"
 #include "swad_global.h"
-#include "swad_HTML.h"
-#include "swad_layout.h"
-#include "swad_media.h"
-#include "swad_message.h"
-#include "swad_notice.h"
-#include "swad_notification.h"
-#include "swad_parameter.h"
-#include "swad_profile.h"
-#include "swad_setting.h"
 #include "swad_timeline.h"
 #include "swad_timeline_favourite.h"