diff --git a/OpenRA.Game/Traits/TraitsInterfaces.cs b/OpenRA.Game/Traits/TraitsInterfaces.cs
index 800317fdf4..8312935b66 100644
--- a/OpenRA.Game/Traits/TraitsInterfaces.cs
+++ b/OpenRA.Game/Traits/TraitsInterfaces.cs
@@ -189,7 +189,12 @@ namespace OpenRA.Traits
 	public interface IDefaultVisibilityInfo : ITraitInfo { }
 	public interface IDefaultVisibility { bool IsVisible(Actor self, Player byPlayer); }
 	public interface IVisibilityModifier { bool IsVisible(Actor self, Player byPlayer); }
-	public interface IFogVisibilityModifier { bool HasFogVisibility(Player byPlayer); }
+
+	public interface IFogVisibilityModifier
+	{
+		bool IsVisible(Actor actor);
+		bool HasFogVisibility(Player byPlayer);
+	}
 
 	public interface IRadarColorModifier { Color RadarColorOverride(Actor self); }
 
diff --git a/OpenRA.Mods.RA/Traits/SupportPowers/GpsPower.cs b/OpenRA.Mods.RA/Traits/SupportPowers/GpsPower.cs
index e8612a11dc..202414ef48 100644
--- a/OpenRA.Mods.RA/Traits/SupportPowers/GpsPower.cs
+++ b/OpenRA.Mods.RA/Traits/SupportPowers/GpsPower.cs
@@ -80,6 +80,15 @@ namespace OpenRA.Mods.RA.Traits
 		{
 			return Granted || GrantedAllies;
 		}
+
+		public bool IsVisible(Actor actor)
+		{
+			var gpsDot = actor.TraitOrDefault<GpsDot>();
+			if (gpsDot == null)
+				return false;
+
+			return gpsDot.IsDotVisible(Owner);
+		}
 	}
 
 	class GpsPowerInfo : SupportPowerInfo