diff --git a/nuad/vienna_nupack.py b/nuad/vienna_nupack.py
index c4f23a18..2b708252 100644
--- a/nuad/vienna_nupack.py
+++ b/nuad/vienna_nupack.py
@@ -475,10 +475,10 @@ def rna_plex_multiple(pairs: Sequence[Tuple[str, str]],
                              'is a different error that I don\'t know how to handle. Exiting...'
                              f'\nerror:\n{error}')
 
-    with open('output/rna_plex_multiple_input.txt', 'w') as f:
-        f.write(user_input)
-    with open('output/rna_plex_multiple_output.txt', 'w') as f:
-        f.write(output)
+    # with open('output/rna_plex_multiple_input.txt', 'w') as f:
+    #     f.write(user_input)
+    # with open('output/rna_plex_multiple_output.txt', 'w') as f:
+    #     f.write(output)
     lines = [line for line in output.split('\n') if line.strip() != '']
     if len(lines) != len(pairs):
         raise ValueError(f'lengths do not match: #lines:{len(lines) - 1} #seqpairs:{len(pairs)}')