diff --git a/OpenRA.Mods.Common/Traits/Player/ProductionQueue.cs b/OpenRA.Mods.Common/Traits/Player/ProductionQueue.cs
index 2790a3ed21..ebdee86429 100644
--- a/OpenRA.Mods.Common/Traits/Player/ProductionQueue.cs
+++ b/OpenRA.Mods.Common/Traits/Player/ProductionQueue.cs
@@ -63,6 +63,11 @@ namespace OpenRA.Mods.Common.Traits
 		public readonly string CancelledAudio = "Cancelled";
 
 		public virtual object Create(ActorInitializer init) { return new ProductionQueue(init, init.Self.Owner.PlayerActor, this); }
+
+		public void RulesetLoaded(Ruleset rules, ActorInfo ai) {
+			if (LowPowerSlowdown <= 0)
+				throw new YamlException("Production queue must have LowPowerSlowdown of at least 1.");
+		}
 	}
 
 	public class ProductionQueue : IResolveOrder, ITick, ITechTreeElement, INotifyOwnerChanged, INotifyKilled, INotifySold, ISync, INotifyTransform, INotifyCreated
diff --git a/OpenRA.Mods.Common/Widgets/Logic/Ingame/ProductionTooltipLogic.cs b/OpenRA.Mods.Common/Widgets/Logic/Ingame/ProductionTooltipLogic.cs
index fd0735d192..239cc31cce 100644
--- a/OpenRA.Mods.Common/Widgets/Logic/Ingame/ProductionTooltipLogic.cs
+++ b/OpenRA.Mods.Common/Widgets/Logic/Ingame/ProductionTooltipLogic.cs
@@ -103,7 +103,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				var timeMultiplier = pm.PowerState != PowerState.Normal ? tooltipIcon.ProductionQueue.Info.LowPowerSlowdown : 1;
 
 				timeLabel.Text = formatBuildTime.Update(buildTime * timeMultiplier);
-				timeLabel.TextColor = pm.PowerState != PowerState.Normal ? Color.Red : Color.White;
+				timeLabel.TextColor = (pm.PowerState != PowerState.Normal && tooltipIcon.ProductionQueue.Info.LowPowerSlowdown > 1) ? Color.Red : Color.White;
 				var timeSize = font.Measure(timeLabel.Text);
 
 				costLabel.Text = cost.ToString();
@@ -143,4 +143,4 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			return a;
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/mods/d2k/rules/player.yaml b/mods/d2k/rules/player.yaml
index 447f24535c..a20390a054 100644
--- a/mods/d2k/rules/player.yaml
+++ b/mods/d2k/rules/player.yaml
@@ -32,7 +32,7 @@ Player:
 	ClassicProductionQueue@Starport:
 		Type: Starport
 		BuildDurationModifier: 212
-		LowPowerSlowdown: 0
+		LowPowerSlowdown: 1
 		BlockedAudio: NoRoom
 		QueuedAudio: OrderPlaced
 		ReadyAudio:
@@ -46,7 +46,7 @@ Player:
 	ClassicProductionQueue@Upgrade: # Upgrade is defined after others so it won't be automatically selected by ProductionQueueFromSelection.
 		Type: Upgrade
 		BuildDurationModifier: 250
-		LowPowerSlowdown: 0
+		LowPowerSlowdown: 1
 		QueuedAudio: Upgrading
 		ReadyAudio: NewOptions
 		BlockedAudio: NoRoom