diff --git a/code/game/objects/effects/effect_system/effects_chem_smoke.dm b/code/game/objects/effects/effect_system/effects_chem_smoke.dm
index 10220b45ec2..0dd6e181036 100644
--- a/code/game/objects/effects/effect_system/effects_chem_smoke.dm
+++ b/code/game/objects/effects/effect_system/effects_chem_smoke.dm
@@ -141,6 +141,9 @@
 		if(iscarbon(A))
 			mobs_to_smoke += A
 
+	if(!length(mobs_to_smoke))
+		return
+
 	var/percentage_to_add = chemholder.reagents.total_volume / length(mobs_to_smoke)
 
 	for(var/mob/living/carbon/smoker as anything in mobs_to_smoke)