diff --git a/extra.py b/extra.py
index 19db1be5d6cc8b67a50d61480ca711480b1f0148..2dd568c5ebdb0d427797ff95a6bce0bf0076b931 100644
--- a/extra.py
+++ b/extra.py
@@ -1,8 +1,6 @@
 from library import IDABot, Unit, UnitType, TypeData, Point2DI, PLAYER_SELF
 from typing import Optional
 
-Point2D.distance = lambda self, other: sqrt((self.x - other.x)**2 + (self.y - other.y)**2)
-
 
 def has_addon(bot: IDABot, candidate: Unit, addon_type: UnitType):
     """