diff --git a/src/common-setup.h b/src/common-setup.h
index 32e7af33..148202ba 100644
--- a/src/common-setup.h
+++ b/src/common-setup.h
@@ -51,17 +51,20 @@ extern gchar *ctcp_version_reply;
 extern gchar *default_quit_message;
 extern gchar *default_user_mode;
 
-extern gint max_command_history;
-extern gint max_textwidget_lines;
-extern gint rawlog_lines;
-extern gint block_remove_lines;
-
 extern gint min_lag_check_time;
 extern gint max_lag_before_disconnect;
 
 extern gint knockout_time; /* How many seconds to keep /knockouted ban */
 extern gboolean check_irssi_versions; /* Check if there's new irssi version available */
 
+/* history */
+extern gint max_command_history;
+extern gint max_textwidget_lines;
+extern gint rawlog_lines;
+extern gint block_remove_lines;
+
+extern gboolean toggle_window_history;
+
 /* nick completion */
 extern gchar *completion_char;
 extern gboolean completion_disable_auto;