diff --git a/aixplain/factories/file_factory.py b/aixplain/factories/file_factory.py
index 2085c75d..1a29ac11 100644
--- a/aixplain/factories/file_factory.py
+++ b/aixplain/factories/file_factory.py
@@ -91,7 +91,7 @@ def check_storage_type(cls, input_link: Any) -> StorageType:
         Returns:
             StorageType: URL, TEXT or FILE
         """
-        if os.path.exists(input_link) is True:
+        if os.path.exists(input_link) is True and os.path.isfile(input_link) is True:
             return StorageType.FILE
         elif (
             input_link.startswith("s3://")