diff --git a/mod_oop/3.7_10_minesweeper.py b/mod_oop/3.7_10_minesweeper.py
index 804f928..d4fa3b1 100644
--- a/mod_oop/3.7_10_minesweeper.py
+++ b/mod_oop/3.7_10_minesweeper.py
@@ -242,6 +242,7 @@ pole_game.show_pole()
 
 def tests():
     SingletonMeta._instances = {}
+    random.seed()
     code = (
         b"a4{e~AV*<sWl(QyWhgN)EFdy4EFdv3DGG2hAUz;QVQpnlZ){~KF)%D3GB7M4F)%3#VRLh3a&#b"
         + b"RWGHYkDIh&PAZcVMa55<@AR^I$(7w>O(6rF7(6!Nm(SgyAAke+gwb6mly3oGRyU~o$y3oEL(7w>I"