diff --git a/WotBlitzStatisticsPro.Blazor.Tests/TestContextBase.cs b/WotBlitzStatisticsPro.Blazor.Tests/TestContextBase.cs
index 8b62163..c3a03b9 100644
--- a/WotBlitzStatisticsPro.Blazor.Tests/TestContextBase.cs
+++ b/WotBlitzStatisticsPro.Blazor.Tests/TestContextBase.cs
@@ -30,6 +30,7 @@ namespace WotBlitzStatisticsPro.Blazor.Tests
 
             TestContext.Services.AddSingleton<DialogService>();
             TestContext.Services.AddSingleton<NotificationService>();
+            TestContext.Services.AddSingleton<TooltipService>();
             TestContext.Services.AddSingleton(SearchServiceMock.Object);
             TestContext.Services.AddSingleton(NotificationsServiceMock.Object);