diff --git a/src/services/metadata_factory.py b/src/services/metadata_factory.py
index 6fdb8992..7e643549 100644
--- a/src/services/metadata_factory.py
+++ b/src/services/metadata_factory.py
@@ -44,7 +44,7 @@ class MetadataFactory:
             UnsupportedFormatError: If no handler is defined for the file type.
             ValueError: If the path is not a valid file.
         """
-        supported_extensions = ".jpg, .jpeg, .png .docx .xlsx .pptx"
+        supported_extensions = ".jpg, .jpeg, .png, .docx, .xlsx, .pptx"
         ext = Path(filepath).suffix.lower()
         if Path(filepath).is_file():
             if ext in [".jpg", ".jpeg", ".png"]: