diff --git a/source/ecs/manager.d b/source/ecs/manager.d
index 25548a7..32067dc 100644
--- a/source/ecs/manager.d
+++ b/source/ecs/manager.d
@@ -124,11 +124,7 @@ class EntityManager
 
     static void alignNum(ref ushort num, ushort aligment)
 	{
-		int reminder = num % aligment;
-		if (reminder != 0)
-		{
-			num += aligment - reminder;
-		}
+        num += aligment - (num & (aligment-1));
 	}
 
     EntityTemplate* allocateTemplate(ushort[] components_ids)