diff --git a/Assets/ObjectPool/Scripts/ObjectPool.cs b/Assets/ObjectPool/Scripts/ObjectPool.cs
index fba6c17..a67f6b0 100755
--- a/Assets/ObjectPool/Scripts/ObjectPool.cs
+++ b/Assets/ObjectPool/Scripts/ObjectPool.cs
@@ -118,7 +118,11 @@ public static GameObject Spawn(GameObject prefab, Transform parent, Vector3 posi
 				if (obj != null)
 				{
 					trans = obj.transform;
-					trans.parent = parent;
+					if (parent)
+					{
+						bool worldPositionStays = (parent.GetComponent<RectTransform> () == null) ? true : false;
+						trans.SetParent (parent, worldPositionStays);
+					}
 					trans.localPosition = position;
 					trans.localRotation = rotation;
 					obj.SetActive(true);
@@ -128,7 +132,11 @@ public static GameObject Spawn(GameObject prefab, Transform parent, Vector3 posi
 			}
 			obj = (GameObject)Object.Instantiate(prefab);
 			trans = obj.transform;
-			trans.parent = parent;
+			if (parent)
+			{
+				bool worldPositionStays = (parent.GetComponent<RectTransform> () == null) ? true : false;
+				trans.SetParent (parent, worldPositionStays);
+			}
 			trans.localPosition = position;
 			trans.localRotation = rotation;
 			instance.spawnedObjects.Add(obj, prefab);
@@ -138,7 +146,11 @@ public static GameObject Spawn(GameObject prefab, Transform parent, Vector3 posi
 		{
 			obj = (GameObject)Object.Instantiate(prefab);
 			trans = obj.GetComponent<Transform>();
-			trans.parent = parent;
+			if (parent)
+			{
+				bool worldPositionStays = (parent.GetComponent<RectTransform> () == null) ? true : false;
+				trans.SetParent (parent, worldPositionStays);
+			}
 			trans.localPosition = position;
 			trans.localRotation = rotation;
 			return obj;