diff --git a/src/interpreter/interpreter.py b/src/interpreter/interpreter.py
index afac1fd..3585868 100644
--- a/src/interpreter/interpreter.py
+++ b/src/interpreter/interpreter.py
@@ -265,7 +265,7 @@ class Interpreter(Expr.Visitor[Any], Stmt.Visitor[None]):
 
         def condition() -> bool:
             if end_value is None:
-                return False
+                return True
             match (step_value < 0, inclusive):
                 case (False, False):
                     return value < end_value