diff --git a/OpenRA.Mods.Common/Traits/Attack/AttackBase.cs b/OpenRA.Mods.Common/Traits/Attack/AttackBase.cs
index 985df88fdc..7ba7d5bc61 100644
--- a/OpenRA.Mods.Common/Traits/Attack/AttackBase.cs
+++ b/OpenRA.Mods.Common/Traits/Attack/AttackBase.cs
@@ -175,7 +175,8 @@ namespace OpenRA.Mods.Common.Traits
 				OnStopOrder(self);
 		}
 
-		protected virtual void OnStopOrder(Actor self)
+		// Some 3rd-party mods rely on this being public
+		public virtual void OnStopOrder(Actor self)
 		{
 			self.CancelActivity();
 		}
diff --git a/OpenRA.Mods.Common/Traits/Attack/AttackFollow.cs b/OpenRA.Mods.Common/Traits/Attack/AttackFollow.cs
index 057a1e7ae0..8db600eb3a 100644
--- a/OpenRA.Mods.Common/Traits/Attack/AttackFollow.cs
+++ b/OpenRA.Mods.Common/Traits/Attack/AttackFollow.cs
@@ -48,7 +48,7 @@ namespace OpenRA.Mods.Common.Traits
 			return new AttackActivity(self, newTarget, allowMove, forceAttack);
 		}
 
-		protected override void OnStopOrder(Actor self)
+		public override void OnStopOrder(Actor self)
 		{
 			Target = Target.Invalid;
 			base.OnStopOrder(self);
diff --git a/OpenRA.Mods.Common/Traits/Attack/AttackOmni.cs b/OpenRA.Mods.Common/Traits/Attack/AttackOmni.cs
index d1b6456014..a48206535e 100644
--- a/OpenRA.Mods.Common/Traits/Attack/AttackOmni.cs
+++ b/OpenRA.Mods.Common/Traits/Attack/AttackOmni.cs
@@ -29,7 +29,8 @@ namespace OpenRA.Mods.Common.Traits
 			return new SetTarget(this, newTarget, allowMove);
 		}
 
-		protected class SetTarget : Activity
+		// Some 3rd-party mods rely on this being public
+		public class SetTarget : Activity
 		{
 			readonly Target target;
 			readonly AttackOmni attack;