diff --git a/src/uncategorized/seCustomSlaveDelivery.tw b/src/uncategorized/seCustomSlaveDelivery.tw
index d26664ad96263f16ba2d367736ce0c30c7011efb..b72157121a584513af3d8250eb4024eb76d673ec 100644
--- a/src/uncategorized/seCustomSlaveDelivery.tw
+++ b/src/uncategorized/seCustomSlaveDelivery.tw
@@ -80,8 +80,10 @@
 <<if $customSlave.analVirgin == 0>>
 	<<set $activeSlave.anus = $customSlave.analVirgin>>
 <</if>>
-<<if $customSlave.voice != -1>>
+<<if def $customSlave.voice && $customSlave.voice != -1>>
 	<<set $activeSlave.voice = $customSlave.voice>>
+<<else>>
+	<<set $activeSlave.voice = random(0,3)>>
 <</if>>
 <<set $activeSlave.health = $customSlave.health>>
 <<set $activeSlave.muscles = $customSlave.muscles>>