diff --git a/encompass-cs/WorldBuilder.cs b/encompass-cs/WorldBuilder.cs
index 7da9ced..2fe307e 100644
--- a/encompass-cs/WorldBuilder.cs
+++ b/encompass-cs/WorldBuilder.cs
@@ -82,7 +82,7 @@ namespace Encompass
         /// <summary>
         /// Sets Component data for the specified Component Type on the specified Entity.
         /// </summary>
-        public void SetComponent<TComponent>(Entity entity, in TComponent component) where TComponent : struct
+        public void SetComponent<TComponent>(Entity entity, in TComponent component) where TComponent : struct, IComponent
         {
             RegisterComponentType<TComponent>();
             _startingExistingComponentStore.Set(entity.ID, component);
@@ -95,7 +95,7 @@ namespace Encompass
             }
         }
 
-        internal void RegisterComponentType<TComponent>() where TComponent : struct
+        internal void RegisterComponentType<TComponent>() where TComponent : struct, IComponent
         {
             if (!_typeToIndex.ContainsKey(typeof(TComponent)))
             {