diff --git a/src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivity.cs b/src/modules/Elsa.Workflows.Management/Activities/WorkflowDefinitionActivity.cs
similarity index 97%
rename from src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivity.cs
rename to src/modules/Elsa.Workflows.Management/Activities/WorkflowDefinitionActivity.cs
index 1a47b31f5..febf34777 100644
--- a/src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivity.cs
+++ b/src/modules/Elsa.Workflows.Management/Activities/WorkflowDefinitionActivity.cs
@@ -7,7 +7,7 @@ using Elsa.Workflows.Management.Entities;
 using Elsa.Workflows.Management.Services;
 using Microsoft.Extensions.DependencyInjection;
 
-namespace Elsa.Workflows.Management.Implementations;
+namespace Elsa.Workflows.Management.Activities;
 
 /// <summary>
 /// Loads and executes an <see cref="WorkflowDefinition"/>.
diff --git a/src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivityPortResolver.cs b/src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivityPortResolver.cs
index be688ccdc..e31af9937 100644
--- a/src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivityPortResolver.cs
+++ b/src/modules/Elsa.Workflows.Management/Implementations/WorkflowDefinitionActivityPortResolver.cs
@@ -1,4 +1,5 @@
 using Elsa.Workflows.Core.Services;
+using Elsa.Workflows.Management.Activities;
 
 namespace Elsa.Workflows.Management.Implementations;