diff --git a/mods/cnc/defaults.yaml b/mods/cnc/defaults.yaml
index ea398abbd0..b4abfe72c7 100644
--- a/mods/cnc/defaults.yaml
+++ b/mods/cnc/defaults.yaml
@@ -50,7 +50,6 @@
 	MobileAir:
 		TerrainTypes: Clear, Rough, Road, Tree, Water, Rock, Wall, Ore, Beach, River
 		TerrainSpeeds: 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%, 100%
-	AvoidsAA:
 	DrawLineToTarget:
 
 ^Infantry:
diff --git a/mods/cnc/structures.yaml b/mods/cnc/structures.yaml
index f38a6f5716..8f801dfb55 100644
--- a/mods/cnc/structures.yaml
+++ b/mods/cnc/structures.yaml
@@ -509,8 +509,6 @@ SAM:
 	AttackTurreted:
 		PrimaryWeapon: Nike
 	AutoTarget:
-	AntiAir:
-		Badness: 10
 	-RenderBuilding:
 	RenderRangeCircle:
 	
diff --git a/mods/cnc/system.yaml b/mods/cnc/system.yaml
index 59469a7bd4..6a4c726056 100644
--- a/mods/cnc/system.yaml
+++ b/mods/cnc/system.yaml
@@ -48,7 +48,6 @@ World:
 	BuildingInfluence:
 	UnitInfluence:
 	AircraftInfluence:
-#	HazardLayer:
 	BridgeLayer:
 		Bridges: bridge1, bridge2, bridge3, bridge4
 	PaletteFromCurrentTheatre: