diff --git a/gamedir/Data-1.13/Ja2_Options.INI b/gamedir/Data-1.13/Ja2_Options.INI
index 4410a7934..d5498e2cf 100644
--- a/gamedir/Data-1.13/Ja2_Options.INI
+++ b/gamedir/Data-1.13/Ja2_Options.INI
@@ -59,6 +59,12 @@ INSANE_CASH =       15000
 
 DYNAMIC_AMMO_WEIGHT = TRUE
 
+;******************************************************************************************************************************
+; Determines whether crepitus / creatures show up in SCI-FI MODE (only - they can never show up in realistic mode)
+;******************************************************************************************************************************
+
+ENABLE_CREPITUS = TRUE
+
 ;******************************************************************************************************************************
 ; TRUE Enables the ability to sell items from the sector Inventory screen with ALT-LMB option.
 ; FALSE Turns off the option. PRICE_MODIFIER is a divisor, 4 = 25% of the item's value.