diff --git a/gamedir/Data-1.13/Ja2_Options.INI b/gamedir/Data-1.13/Ja2_Options.INI
index a50d62500..0e5369509 100644
--- a/gamedir/Data-1.13/Ja2_Options.INI
+++ b/gamedir/Data-1.13/Ja2_Options.INI
@@ -1484,6 +1484,9 @@ CRITICAL_LEGSHOT_CAUSES_AP_LOSS = TRUE
 
 CAN_JUMP_THROUGH_WINDOWS = TRUE
 
+; allows jumping through closed windows, smashing them while jumping
+CAN_JUMP_THROUGH_CLOSED_WINDOWS = TRUE
+
 ;------------------------------------------------------------------------------------------------------------------------------
 ; Turn this on and your merc can climb on walls (that have 2 floors like buildings) by pressing 'j'.
 ;------------------------------------------------------------------------------------------------------------------------------
@@ -1940,6 +1943,9 @@ ZOMBIE_RISE_WAVE_FREQUENCY = 60
 ; Can zombies climb roofs?
 ZOMBIE_CAN_CLIMB = TRUE
 
+; Can zombies jump through windows?
+ZOMBIE_CAN_JUMP_WINDOWS = TRUE
+
 ; zombies made from corpses of civilians do not have a punch animation, which results in a deadlock if they try to punch
 ; TRUE: So instead, they blow up, dealing damage to everyone (setting TRUE)
 ; FALSE: Another option is a 'simulated attack' without animation. However, this is pretty simple and rigged up, only a temporary solution.