diff --git a/code/modules/atmospherics/gasmixtures/gas_types/core.dm b/code/modules/atmospherics/gasmixtures/gas_types/core.dm
index 747573b9f9c0..41fe6208fd54 100644
--- a/code/modules/atmospherics/gasmixtures/gas_types/core.dm
+++ b/code/modules/atmospherics/gasmixtures/gas_types/core.dm
@@ -79,4 +79,4 @@
 	gas_flags = GAS_FLAG_FUEL | GAS_FLAG_FUSION_FUEL | GAS_FLAG_CONTAMINANT | GAS_FLAG_FILTERABLE | GAS_FLAG_CORE
 	gas_groups = GAS_GROUP_CORE
 
-	default_tlv = list(0, 0, 0, 0.5)
+	default_tlv = list(0, 0, 0.25, 0.5)