diff --git a/mods/cnc/rules/defaults.yaml b/mods/cnc/rules/defaults.yaml
index 35d0e98857..05fcb87a6d 100644
--- a/mods/cnc/rules/defaults.yaml
+++ b/mods/cnc/rules/defaults.yaml
@@ -208,6 +208,11 @@
 		CargoType: Infantry
 	HiddenUnderFog:
 	PoisonedByTiberium:
+		UpgradeTypes: hazmatsuits
+		UpgradeMaxEnabledLevel: 0
+	GlobalUpgradable@BIO:
+		Upgrades: hazmatsuits
+		Prerequisites: bio
 	ActorLostNotification:
 	SpawnActorOnDeath:
 		Probability: 10
@@ -227,7 +232,7 @@
 		DamageCooldown: 125
 		UpgradeTypes: hospitalheal
 		UpgradeMinEnabledLevel: 1
-	GlobalUpgradable:
+	GlobalUpgradable@HOSPITAL:
 		Upgrades: hospitalheal
 		Prerequisites: hosp
 	DetectCloaked:
diff --git a/mods/cnc/rules/tech.yaml b/mods/cnc/rules/tech.yaml
index 232a087061..e93ac2f304 100644
--- a/mods/cnc/rules/tech.yaml
+++ b/mods/cnc/rules/tech.yaml
@@ -55,6 +55,7 @@ BIO:
 		Dimensions: 2,2
 	Tooltip:
 		Name: Biological Lab
+		Description: Grants Tiberium immunity to infantry.
 	Exit@1:
 		SpawnOffset: 0,-426,0
 		ExitCell: 0,-1