diff --git a/src/KubeOps.Generator/SyntaxReceiver/EntityControllerSyntaxReceiver.cs b/src/KubeOps.Generator/SyntaxReceiver/EntityControllerSyntaxReceiver.cs
index 08351ab8..366056ef 100644
--- a/src/KubeOps.Generator/SyntaxReceiver/EntityControllerSyntaxReceiver.cs
+++ b/src/KubeOps.Generator/SyntaxReceiver/EntityControllerSyntaxReceiver.cs
@@ -11,6 +11,10 @@ internal sealed class EntityControllerSyntaxReceiver : ISyntaxContextReceiver
 {
     private const string IEntityControllerMetadataName = "KubeOps.Abstractions.Reconciliation.Controller.IEntityController`1";
 
+#pragma warning disable RS1024
+    private readonly HashSet<INamedTypeSymbol> _visitedTypeSymbols = new(SymbolEqualityComparer.Default);
+#pragma warning restore RS1024
+
     public List<(ClassDeclarationSyntax Controller, string EntityName)> Controllers { get; } = [];
 
     public void OnVisitSyntaxNode(GeneratorSyntaxContext context)
@@ -25,6 +29,11 @@ public void OnVisitSyntaxNode(GeneratorSyntaxContext context)
             return;
         }
 
+        if (!_visitedTypeSymbols.Add(classSymbol))
+        {
+            return;
+        }
+
         if (classSymbol.IsAbstract)
         {
             return;
diff --git a/src/KubeOps.Generator/SyntaxReceiver/EntityFinalizerSyntaxReceiver.cs b/src/KubeOps.Generator/SyntaxReceiver/EntityFinalizerSyntaxReceiver.cs
index 9f07e3a8..e445500c 100644
--- a/src/KubeOps.Generator/SyntaxReceiver/EntityFinalizerSyntaxReceiver.cs
+++ b/src/KubeOps.Generator/SyntaxReceiver/EntityFinalizerSyntaxReceiver.cs
@@ -11,6 +11,10 @@ internal sealed class EntityFinalizerSyntaxReceiver : ISyntaxContextReceiver
 {
     private const string IEntityFinalizerMetadataName = "KubeOps.Abstractions.Reconciliation.Finalizer.IEntityFinalizer`1";
 
+#pragma warning disable RS1024
+    private readonly HashSet<INamedTypeSymbol> _visitedTypeSymbols = new(SymbolEqualityComparer.Default);
+#pragma warning restore RS1024
+
     public List<(ClassDeclarationSyntax Finalizer, string EntityName)> Finalizer { get; } = [];
 
     public void OnVisitSyntaxNode(GeneratorSyntaxContext context)
@@ -25,6 +29,11 @@ public void OnVisitSyntaxNode(GeneratorSyntaxContext context)
             return;
         }
 
+        if (!_visitedTypeSymbols.Add(classSymbol))
+        {
+            return;
+        }
+
         if (classSymbol.IsAbstract)
         {
             return;
diff --git a/test/KubeOps.Generator.Test/ControllerRegistrationGenerator.Test.cs b/test/KubeOps.Generator.Test/ControllerRegistrationGenerator.Test.cs
index 021bb047..c3bc81e9 100644
--- a/test/KubeOps.Generator.Test/ControllerRegistrationGenerator.Test.cs
+++ b/test/KubeOps.Generator.Test/ControllerRegistrationGenerator.Test.cs
@@ -88,6 +88,40 @@ public sealed class V1TestEntityController : EntityControllerBase<V1TestEntity>
                      #pragma warning disable CS1591
                      using KubeOps.Abstractions.Builder;
 
+                     public static class ControllerRegistrations
+                     {
+                         public static IOperatorBuilder RegisterControllers(this IOperatorBuilder builder)
+                         {
+                             builder.AddController<global::V1TestEntityController, global::V1TestEntity>();
+                             return builder;
+                         }
+                     }
+                     """)]
+    [InlineData("""
+                using k8s;
+                using k8s.Models;
+                using KubeOps.Abstractions.Reconciliation.Controller;
+
+                [KubernetesEntity(Group = "testing.dev", ApiVersion = "v1", Kind = "TestEntity")]
+                public sealed class V1TestEntity : IKubernetesObject<V1ObjectMeta>
+                {
+                }
+
+                public partial class V1TestEntityController : IEntityController<V1TestEntity>
+                {
+                }
+
+                public partial class V1TestEntityController
+                {
+                }
+                """, """
+                     // <auto-generated>
+                     // This code was generated by a tool.
+                     // Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
+                     // </auto-generated>
+                     #pragma warning disable CS1591
+                     using KubeOps.Abstractions.Builder;
+
                      public static class ControllerRegistrations
                      {
                          public static IOperatorBuilder RegisterControllers(this IOperatorBuilder builder)
diff --git a/test/KubeOps.Generator.Test/FinalizerRegistrationGenerator.Test.cs b/test/KubeOps.Generator.Test/FinalizerRegistrationGenerator.Test.cs
index fca9af3c..1956ed01 100644
--- a/test/KubeOps.Generator.Test/FinalizerRegistrationGenerator.Test.cs
+++ b/test/KubeOps.Generator.Test/FinalizerRegistrationGenerator.Test.cs
@@ -147,6 +147,41 @@ public sealed class V1TestEntity : IKubernetesObject<V1ObjectMeta>
                 {
                 }
 
+                public partial class V1TestEntityFinalizer : IEntityFinalizer<V1TestEntity>
+                {
+                }
+
+                public partial class V1TestEntityFinalizer : IEntityFinalizer<V1TestEntity>
+                {
+                }
+                """, """
+                     // <auto-generated>
+                     // This code was generated by a tool.
+                     // Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
+                     // </auto-generated>
+                     #pragma warning disable CS1591
+                     using KubeOps.Abstractions.Builder;
+
+                     public static class FinalizerRegistrations
+                     {
+                         public const string V1TestEntityFinalizerIdentifier = "testing.dev/v1testentityfinalizer";
+                         public static IOperatorBuilder RegisterFinalizers(this IOperatorBuilder builder)
+                         {
+                             builder.AddFinalizer<global::V1TestEntityFinalizer, global::V1TestEntity>(V1TestEntityFinalizerIdentifier);
+                             return builder;
+                         }
+                     }
+                     """)]
+    [InlineData("""
+                using k8s;
+                using k8s.Models;
+                using KubeOps.Abstractions.Reconciliation.Finalizer;
+
+                [KubernetesEntity(Group = "testing.dev", ApiVersion = "v1", Kind = "TestEntity")]
+                public sealed class V1TestEntity : IKubernetesObject<V1ObjectMeta>
+                {
+                }
+
                 public sealed class V1TestEntityCleanupDeployment : IEntityFinalizer<V1TestEntity>
                 {
                 }