diff --git a/src/ytdl_sub/validators/file_path_validators.py b/src/ytdl_sub/validators/file_path_validators.py
index 57a7781f..18b1fb49 100644
--- a/src/ytdl_sub/validators/file_path_validators.py
+++ b/src/ytdl_sub/validators/file_path_validators.py
@@ -9,7 +9,7 @@ from ytdl_sub.validators.validators import StringValidator
 
 
 class ExistingFileValidator(StringValidator):
-    _expected_value_type = "file"
+    _expected_value_type_name = "file"
 
     def __init__(self, name: str, value: Any):
         super().__init__(name, value)