diff --git a/tafrigh/config.py b/tafrigh/config.py
index d68cb95..8b29050 100644
--- a/tafrigh/config.py
+++ b/tafrigh/config.py
@@ -61,7 +61,7 @@ def __init__(
       output_dir: str,
     ):
       if 'all' in output_formats:
-        output_formats = list(TranscriptType)
+        output_formats = [transcript_type.value for transcript_type in TranscriptType]
 
       if TranscriptType.ALL in output_formats:
         output_formats.remove(str(TranscriptType.ALL))