diff --git a/mods/d2k/rules/arrakis.yaml b/mods/d2k/rules/arrakis.yaml
index d6c222012f..95419fec35 100644
--- a/mods/d2k/rules/arrakis.yaml
+++ b/mods/d2k/rules/arrakis.yaml
@@ -27,7 +27,7 @@ spicebloom:
 	AutoSelectionSize:
 	RenderSprites:
 	AppearsOnRadar:
-		UseLocation: yes
+		UseLocation: true
 	Tooltip:
 		Name: Spice Bloom
 	SpiceBloom:
@@ -46,7 +46,7 @@ spicebloom:
 		Radius: 512
 	Targetable:
 		TargetTypes: Ground
-		RequiresForceFire: yes
+		RequiresForceFire: true
 	Armor:
 		Type: none
 
@@ -86,7 +86,7 @@ sandworm:
 		Sequence: sand
 	HiddenUnderFog:
 	AppearsOnRadar:
-		UseLocation: yes
+		UseLocation: true
 	AttackSwallow:
 		AttackRequiresEnteringCell: true
 		IgnoresVisibility: true
diff --git a/mods/d2k/rules/defaults.yaml b/mods/d2k/rules/defaults.yaml
index db4cfabd14..63c8da3750 100644
--- a/mods/d2k/rules/defaults.yaml
+++ b/mods/d2k/rules/defaults.yaml
@@ -127,7 +127,7 @@
 		Interval: 4
 	Targetable:
 		TargetTypes: Ground, Vehicle
-		RequiresForceFire: yes
+		RequiresForceFire: true
 	DisabledOverlay:
 	Explodes:
 		Weapon: UnitExplodeMed
@@ -226,7 +226,7 @@
 	Inherits@1: ^ExistsInWorld
 	Inherits@2: ^SpriteActor
 	AppearsOnRadar:
-		UseLocation: yes
+		UseLocation: true
 	HiddenUnderFog:
 		Type: CenterPosition
 		AlwaysVisibleStances: None
diff --git a/mods/d2k/rules/misc.yaml b/mods/d2k/rules/misc.yaml
index 55a466d40f..98e1393887 100644
--- a/mods/d2k/rules/misc.yaml
+++ b/mods/d2k/rules/misc.yaml
@@ -8,15 +8,15 @@ crate:
 	GiveCashCrateAction@1:
 		Amount: 750
 		SelectionShares: 25
-		UseCashTick: yes
+		UseCashTick: true
 	GiveCashCrateAction@2:
 		Amount: 1000
 		SelectionShares: 50
-		UseCashTick: yes
+		UseCashTick: true
 	GiveCashCrateAction@3:
 		Amount: 1500
 		SelectionShares: 25
-		UseCashTick: yes
+		UseCashTick: true
 	ExplodeCrateAction@1:
 		Weapon: CrateExplosion
 		SelectionShares: 5
diff --git a/mods/d2k/rules/structures.yaml b/mods/d2k/rules/structures.yaml
index 3a6006fb5e..b15f129683 100644
--- a/mods/d2k/rules/structures.yaml
+++ b/mods/d2k/rules/structures.yaml
@@ -525,7 +525,7 @@ outpost:
 			mercenary: outpost.ordos
 	WithIdleOverlay@DISH:
 		Sequence: idle-dish
-		PauseOnLowPower: yes
+		PauseOnLowPower: true
 	Power:
 		Amount: -125
 	ProvidesPrerequisite@buildingname:
diff --git a/mods/d2k/weapons/missiles.yaml b/mods/d2k/weapons/missiles.yaml
index c2bca39f92..d915d170a8 100644
--- a/mods/d2k/weapons/missiles.yaml
+++ b/mods/d2k/weapons/missiles.yaml
@@ -115,7 +115,7 @@ mtank_pri:
 		RangeLimit: 7c204
 		HorizontalRateOfTurn: 3
 		Blockable: false
-		Shadow: yes
+		Shadow: true
 		Inaccuracy: 96
 		Image: MISSILE2
 		TrailImage: large_trail
@@ -150,7 +150,7 @@ DeviatorMissile:
 		RangeLimit: 6c0
 		HorizontalRateOfTurn: 3
 		Blockable: false
-		Shadow: yes
+		Shadow: true
 		Inaccuracy: 384
 		Image: MISSILE
 		TrailImage: deviator_trail