diff --git a/Scripts/Targetable.cs b/Scripts/Targetable.cs
index 09d8e9f..cf229a7 100644
--- a/Scripts/Targetable.cs
+++ b/Scripts/Targetable.cs
@@ -19,7 +19,14 @@ namespace GameDev.CoreSystems
 
         private void OnEnable()
         {
-            _activeTargetableRuntimeSet.Add(this);
+            if (_activeTargetableRuntimeSet != null)
+            {
+                _activeTargetableRuntimeSet.Add(this);
+            }
+            else
+            {
+                Debug.LogError("TargetableRuntimeSet does not exist");
+            }
         }
 
         private void OnDisable()