diff --git a/packages/Ignis.Components.Reactivity/ReactiveValue.cs b/packages/Ignis.Components.Reactivity/ReactiveValue.cs
index 3964ca07..56ace422 100644
--- a/packages/Ignis.Components.Reactivity/ReactiveValue.cs
+++ b/packages/Ignis.Components.Reactivity/ReactiveValue.cs
@@ -1,10 +1,13 @@
-namespace Ignis.Components.Reactivity;
+using Ignis.Components.Extensions;
+
+namespace Ignis.Components.Reactivity;
 
 public sealed class ReactiveValue<T> where T : struct
 {
     private readonly IList<ReactiveSection<T>> _sections = new List<ReactiveSection<T>>();
     private readonly IgnisComponentBase _owner;
 
+    private IgnisReactivityExtension? _extension;
     private T _value;
 
     public ReactiveValue(IgnisComponentBase owner, T value)
@@ -17,6 +20,8 @@ public T Value
     {
         get
         {
+            Initialize();
+            
             return _value;
         }
         set
@@ -34,6 +39,18 @@ public T Value
         }
     }
 
+    private void Initialize()
+    {
+        if (_extension != null) return;
+
+        _extension = _owner.GetExtension<IgnisReactivityExtension>();
+        if (_extension == null)
+        {
+            throw new InvalidOperationException(
+                "To use the Ignis reactivity system please make sure to call AddIgnisReactivity() in your Program.cs.");
+        }
+    }
+
     public void SetSilently(T value)
     {
         _value = value;
diff --git a/tests/Ignis.Tests.Components.Reactivity/ReactiveSectionTests.razor b/tests/Ignis.Tests.Components.Reactivity/ReactiveSectionTests.razor
index 76ab090f..05e6d49d 100644
--- a/tests/Ignis.Tests.Components.Reactivity/ReactiveSectionTests.razor
+++ b/tests/Ignis.Tests.Components.Reactivity/ReactiveSectionTests.razor
@@ -6,6 +6,7 @@
     public void Test()
     {
         Services.AddIgnisTestServices();
+        Services.AddIgnisReactivity();
         
         var cut = RenderComponent<AlternatingCounter>();
 
diff --git a/tests/Ignis.Tests.Components.Reactivity/ReactiveValueTests.razor b/tests/Ignis.Tests.Components.Reactivity/ReactiveValueTests.razor
index 477463f0..1abbd631 100644
--- a/tests/Ignis.Tests.Components.Reactivity/ReactiveValueTests.razor
+++ b/tests/Ignis.Tests.Components.Reactivity/ReactiveValueTests.razor
@@ -2,10 +2,20 @@
 
 @code
 {
+    [Fact]
+    public void MissingCallToAddIgnisReactivity()
+    {
+        Services.AddIgnisTestServices();
+        
+        var exception = Assert.Throws<InvalidOperationException>(() => RenderComponent<SilentCounter>());
+        Assert.Equal("To use the Ignis reactivity system please make sure to call AddIgnisReactivity() in your Program.cs.", exception.Message);
+    }
+    
     [Fact]
     public void SilentCounter()
     {
         Services.AddIgnisTestServices();
+        Services.AddIgnisReactivity();
 
         var cut = RenderComponent<SilentCounter>();
         Assert.Equal(1, cut.RenderCount);
@@ -25,6 +35,7 @@
     public void ReactiveCounter()
     {
         Services.AddIgnisTestServices();
+        Services.AddIgnisReactivity();
 
         var cut = RenderComponent<ReactiveCounter>();
         Assert.Equal(1, cut.RenderCount);
diff --git a/tests/e2e/Ignis.Tests.E2E.Website/Program.cs b/tests/e2e/Ignis.Tests.E2E.Website/Program.cs
index 9bacac63..630f7380 100644
--- a/tests/e2e/Ignis.Tests.E2E.Website/Program.cs
+++ b/tests/e2e/Ignis.Tests.E2E.Website/Program.cs
@@ -1,4 +1,5 @@
 using Ignis.Components;
+using Ignis.Components.Reactivity;
 using Ignis.Components.WebAssembly;
 using Ignis.Tests.E2E.Website;
 using Microsoft.AspNetCore.Components.Web;
diff --git a/tests/e2e/Ignis.Tests.E2E.Website/Shared/WrappedCustomDialogWithForm.razor b/tests/e2e/Ignis.Tests.E2E.Website/Shared/WrappedCustomDialogWithForm.razor
index f0ee4699..35727d01 100644
--- a/tests/e2e/Ignis.Tests.E2E.Website/Shared/WrappedCustomDialogWithForm.razor
+++ b/tests/e2e/Ignis.Tests.E2E.Website/Shared/WrappedCustomDialogWithForm.razor
@@ -28,6 +28,13 @@
                     <ValidationMessage For="@(() => _model.SelectedType)"></ValidationMessage>
                 </p>
             </div>
+
+            @if (_model.SelectedType != null)
+            {
+                <p>
+                    @_model.SelectedType.Name
+                </p>
+            }
         </EditForm>
     </ChildContent>
     <FooterContent>