diff --git a/mods/cnc/rules/defaults.yaml b/mods/cnc/rules/defaults.yaml
index 6786586e8c..5685a7606c 100644
--- a/mods/cnc/rules/defaults.yaml
+++ b/mods/cnc/rules/defaults.yaml
@@ -204,7 +204,7 @@
 		CruisingUpgrades: cruising
 		CanHover: True
 	HiddenUnderFog:
-		Type: CenterPosition
+		Type: GroundPosition
 	ActorLostNotification:
 	Explodes:
 		Weapon: HeliExplode
@@ -500,7 +500,7 @@
 	AppearsOnRadar:
 		UseLocation: yes
 	HiddenUnderFog:
-		Type: CenterPosition
+		Type: GroundPosition
 		AlwaysVisibleStances: None
 	ActorLostNotification:
 	AttackMove:
diff --git a/mods/d2k/rules/defaults.yaml b/mods/d2k/rules/defaults.yaml
index 1c4a8846dc..0241a2bb07 100644
--- a/mods/d2k/rules/defaults.yaml
+++ b/mods/d2k/rules/defaults.yaml
@@ -299,7 +299,7 @@
 	AppearsOnRadar:
 		UseLocation: true
 	HiddenUnderFog:
-		Type: CenterPosition
+		Type: GroundPosition
 		AlwaysVisibleStances: None
 	ActorLostNotification:
 	AttackMove:
diff --git a/mods/ra/rules/defaults.yaml b/mods/ra/rules/defaults.yaml
index d7ad8b18c0..015f32b942 100644
--- a/mods/ra/rules/defaults.yaml
+++ b/mods/ra/rules/defaults.yaml
@@ -432,7 +432,7 @@
 		TargetTypes: Air
 		RequiresCondition: airborne
 	HiddenUnderFog:
-		Type: CenterPosition
+		Type: GroundPosition
 	AttackMove:
 	Guard:
 	Guardable:
diff --git a/mods/ts/rules/defaults.yaml b/mods/ts/rules/defaults.yaml
index 679010a8d5..296d7a22eb 100644
--- a/mods/ts/rules/defaults.yaml
+++ b/mods/ts/rules/defaults.yaml
@@ -571,7 +571,7 @@
 	Voiced:
 		VoiceSet: Heli
 	HiddenUnderFog:
-		Type: CenterPosition
+		Type: GroundPosition
 	AttackMove:
 		Voice: Move
 	ActorLostNotification:
@@ -614,7 +614,7 @@
 	Armor:
 		Type: Heavy
 	HiddenUnderFog:
-		Type: CenterPosition
+		Type: GroundPosition
 	AutoTargetIgnore:
 	ScriptTriggers:
 	Tooltip: