diff --git a/code/modules/events/spacevine.dm b/code/modules/events/spacevine.dm
index db7028411c..d28f8b7e4b 100644
--- a/code/modules/events/spacevine.dm
+++ b/code/modules/events/spacevine.dm
@@ -169,7 +169,7 @@
 		var/datum/gas_mixture/GM = T.air
 		if(!GM.gases[/datum/gas/oxygen])
 			return
-		GM.gases[/datum/gas/oxygen][MOLES] -= severity * holder.energy
+		GM.gases[/datum/gas/oxygen][MOLES] = max(GM.gases[/datum/gas/oxygen][MOLES] - severity * holder.energy, 0)
 		GM.garbage_collect()
 
 /datum/spacevine_mutation/nitro_eater
@@ -184,7 +184,7 @@
 		var/datum/gas_mixture/GM = T.air
 		if(!GM.gases[/datum/gas/nitrogen])
 			return
-		GM.gases[/datum/gas/nitrogen][MOLES] -= severity * holder.energy
+		GM.gases[/datum/gas/nitrogen][MOLES] = max(GM.gases[/datum/gas/nitrogen][MOLES] - severity * holder.energy, 0)
 		GM.garbage_collect()
 
 /datum/spacevine_mutation/carbondioxide_eater
@@ -199,7 +199,7 @@
 		var/datum/gas_mixture/GM = T.air
 		if(!GM.gases[/datum/gas/carbon_dioxide])
 			return
-		GM.gases[/datum/gas/carbon_dioxide][MOLES] -= severity * holder.energy
+		GM.gases[/datum/gas/carbon_dioxide][MOLES] = max(GM.gases[/datum/gas/carbon_dioxide][MOLES] - severity * holder.energy, 0)
 		GM.garbage_collect()
 
 /datum/spacevine_mutation/plasma_eater
@@ -214,7 +214,7 @@
 		var/datum/gas_mixture/GM = T.air
 		if(!GM.gases[/datum/gas/plasma])
 			return
-		GM.gases[/datum/gas/plasma][MOLES] -= severity * holder.energy
+		GM.gases[/datum/gas/plasma][MOLES] = max(GM.gases[/datum/gas/plasma][MOLES] - severity * holder.energy, 0)
 		GM.garbage_collect()
 
 /datum/spacevine_mutation/thorns