diff --git a/gamedir/Data-1.13/Ja2_Options.INI b/gamedir/Data-1.13/Ja2_Options.INI
index b74e104c1..f1f12eb66 100644
--- a/gamedir/Data-1.13/Ja2_Options.INI
+++ b/gamedir/Data-1.13/Ja2_Options.INI
@@ -1912,6 +1912,9 @@ SHOW_ENEMY_AWARENESS = FALSE
 
 INDIVIDUAL_HIDDEN_PERSON_NAMES = TRUE
 
+; should known NPCs use a different colour (deep blue instead of white), so we can find them more easily?
+KNOWN_NPCS_DIFFERENT_MAPCOLOUR = FALSE
+
 ;------------------------------------------------------------------------------------------------------------------------------
 ; Turn this on, and the game uses individual enemy names (in tactical) defined in 'TableData\EnemyNames.xml'.
 ; If you set SOLDIER_PROFILES_ENEMY = TRUE the name in the profile takes precedence.