diff --git a/src/environment.py b/src/environment.py
index bbe09ee..dd7cbca 100644
--- a/src/environment.py
+++ b/src/environment.py
@@ -3,7 +3,7 @@ from random import choices
 
 
 def generate_field() -> List[List[int]]:
-    return [choices(range(6), weights=[8, 8, 4, 4, 4, 4], k=10) for y in range(10)]
+    return [choices(range(6), weights=[8, 8, 4, 4, 4, 4], k=10) for _ in range(10)]
 
 
 class Environment: