diff --git a/src/table/settings/gui_settings.ini b/src/table/settings/gui_settings.ini
--- a/src/table/settings/gui_settings.ini
+++ b/src/table/settings/gui_settings.ini
@@ -496,8 +496,8 @@ var      = gui.coloured_news_year
 type     = SLE_INT32
 flags    = SF_NOT_IN_SAVE | SF_NO_NETWORK_SYNC
 def      = 2000
-min      = MIN_YEAR
-max      = MAX_YEAR
+min      = CalendarTime::MIN_YEAR
+max      = CalendarTime::MAX_YEAR
 interval = 1
 str      = STR_CONFIG_SETTING_COLOURED_NEWS_YEAR
 strhelp  = STR_CONFIG_SETTING_COLOURED_NEWS_YEAR_HELPTEXT
@@ -543,8 +543,8 @@ var      = gui.semaphore_build_before
 type     = SLE_INT32
 flags    = SF_NOT_IN_SAVE | SF_NO_NETWORK_SYNC
 def      = 1950
-min      = MIN_YEAR
-max      = MAX_YEAR
+min      = CalendarTime::MIN_YEAR
+max      = CalendarTime::MAX_YEAR
 interval = 1
 str      = STR_CONFIG_SETTING_SEMAPHORE_BUILD_BEFORE_DATE
 strhelp  = STR_CONFIG_SETTING_SEMAPHORE_BUILD_BEFORE_DATE_HELPTEXT