diff --git a/src/core/Elsa.Core/Activities/For.cs b/src/core/Elsa.Core/Activities/For.cs
index 75f09634b..7d96426a8 100644
--- a/src/core/Elsa.Core/Activities/For.cs
+++ b/src/core/Elsa.Core/Activities/For.cs
@@ -20,7 +20,7 @@ public class For : Activity
     [JsonConstructor]
     public For()
     {
-        OnSignalReceived<BreakSignal>(OnBreak);
+        OnSignalReceived<BreakSignal>(OnBreakAsync);
     }
 
     public For(int start, int end, ForOperator forOperator = ForOperator.LessThanOrEqual) : this()
@@ -37,6 +37,8 @@ public class For : Activity
     [Outbound] public IActivity? Body { get; set; }
     public Variable<int?> CurrentValue { get; set; } = new();
 
+    protected override bool CompleteImplicitly { get; } = false;
+
     protected override void Execute(ActivityExecutionContext context)
     {
         var iterateNode = Body;
@@ -84,8 +86,15 @@ public class For : Activity
         return ValueTask.CompletedTask;
     }
     
-    private void OnBreak(BreakSignal signal, SignalContext context)
+    private async ValueTask OnBreakAsync(BreakSignal signal, SignalContext context)
     {
+        // Prevent bubbling.
         context.StopPropagation();
+
+        // Remove child activity execution contexts.
+        context.ActivityExecutionContext.RemoveChildren();
+
+        // Mark this activity as completed.
+        await context.ActivityExecutionContext.CompleteActivityAsync();
     }
 }
\ No newline at end of file