diff --git a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
index 8a4d381535..185f029d14 100644
--- a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Collections.Specialized;
 using System.Diagnostics;
 using System.Linq;
+using JetBrains.Annotations;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
@@ -94,6 +95,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// Creates a <see cref="SelectionBlueprint{T}"/> for a specific item.
         /// </summary>
         /// <param name="item">The item to create the overlay for.</param>
+        [CanBeNull]
         protected virtual SelectionBlueprint<T> CreateBlueprintFor(T item) => null;
 
         protected virtual DragBox CreateDragBox(Action<RectangleF> performSelect) => new DragBox(performSelect);
diff --git a/osu.Game/Screens/Edit/Compose/Components/ComposeBlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/ComposeBlueprintContainer.cs
index 3552305664..79b38861ee 100644
--- a/osu.Game/Screens/Edit/Compose/Components/ComposeBlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/ComposeBlueprintContainer.cs
@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Humanizer;
+using JetBrains.Annotations;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
@@ -259,6 +260,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
             return CreateHitObjectBlueprintFor(item)?.With(b => b.DrawableObject = drawable);
         }
 
+        [CanBeNull]
         public virtual HitObjectSelectionBlueprint CreateHitObjectBlueprintFor(HitObject hitObject) => null;
 
         private void hitObjectAdded(HitObject obj)