diff --git a/OpenRA.Mods.Cnc/Traits/AttackPopupTurreted.cs b/OpenRA.Mods.Cnc/Traits/AttackPopupTurreted.cs
index 63e1055e9a..1feba5c954 100644
--- a/OpenRA.Mods.Cnc/Traits/AttackPopupTurreted.cs
+++ b/OpenRA.Mods.Cnc/Traits/AttackPopupTurreted.cs
@@ -83,7 +83,7 @@ namespace OpenRA.Mods.Cnc.Traits
 			return true;
 		}
 
-		public void TickIdle(Actor self)
+		void INotifyIdle.TickIdle(Actor self)
 		{
 			if (state == PopupState.Open && idleTicks++ > info.CloseDelay)
 			{
diff --git a/OpenRA.Mods.Common/Traits/Harvester.cs b/OpenRA.Mods.Common/Traits/Harvester.cs
index ad5127677a..9b0b0ff9ef 100644
--- a/OpenRA.Mods.Common/Traits/Harvester.cs
+++ b/OpenRA.Mods.Common/Traits/Harvester.cs
@@ -105,7 +105,7 @@ namespace OpenRA.Mods.Common.Traits
 			self.QueueActivity(new CallFunc(() => ChooseNewProc(self, null)));
 		}
 
-		public void Created(Actor self)
+		void INotifyCreated.Created(Actor self)
 		{
 			if (Info.SearchOnCreation)
 				self.QueueActivity(new FindResources(self));
@@ -254,7 +254,7 @@ namespace OpenRA.Mods.Common.Traits
 			}
 		}
 
-		public void TickIdle(Actor self)
+		void INotifyIdle.TickIdle(Actor self)
 		{
 			// Should we be intelligent while idle?
 			if (!idleSmart) return;
diff --git a/OpenRA.Mods.Common/Traits/Render/WithGateSpriteBody.cs b/OpenRA.Mods.Common/Traits/Render/WithGateSpriteBody.cs
index f1b3eec503..3d38bcab91 100644
--- a/OpenRA.Mods.Common/Traits/Render/WithGateSpriteBody.cs
+++ b/OpenRA.Mods.Common/Traits/Render/WithGateSpriteBody.cs
@@ -107,7 +107,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 				rb.SetDirty();
 		}
 
-		public void RemovedFromWorld(Actor self)
+		void INotifyRemovedFromWorld.RemovedFromWorld(Actor self)
 		{
 			UpdateNeighbours(self);
 		}
diff --git a/OpenRA.Mods.Common/Traits/Render/WithSiloAnimation.cs b/OpenRA.Mods.Common/Traits/Render/WithSiloAnimation.cs
index be3b86d262..6d738f138c 100644
--- a/OpenRA.Mods.Common/Traits/Render/WithSiloAnimation.cs
+++ b/OpenRA.Mods.Common/Traits/Render/WithSiloAnimation.cs
@@ -46,7 +46,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 					: 0);
 		}
 
-		public void OnOwnerChanged(Actor self, Player oldOwner, Player newOwner)
+		void INotifyOwnerChanged.OnOwnerChanged(Actor self, Player oldOwner, Player newOwner)
 		{
 			playerResources = newOwner.PlayerActor.Trait<PlayerResources>();
 
diff --git a/OpenRA.Mods.Common/Traits/Render/WithWallSpriteBody.cs b/OpenRA.Mods.Common/Traits/Render/WithWallSpriteBody.cs
index e58322a2b5..dbaaaf2e83 100644
--- a/OpenRA.Mods.Common/Traits/Render/WithWallSpriteBody.cs
+++ b/OpenRA.Mods.Common/Traits/Render/WithWallSpriteBody.cs
@@ -106,7 +106,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 			DefaultAnimation.PlayFetchIndex(NormalizeSequence(self, Info.Sequence), () => adjacent);
 		}
 
-		public void Tick(Actor self)
+		void ITick.Tick(Actor self)
 		{
 			if (!dirty)
 				return;