diff --git a/similarities/weekly_cosine_similarities.py b/similarities/weekly_cosine_similarities.py
index 235b4cf..1476b77 100755
--- a/similarities/weekly_cosine_similarities.py
+++ b/similarities/weekly_cosine_similarities.py
@@ -40,7 +40,7 @@ def _week_similarities(week, simfunc, tfidf_path, term_colname, included_subredd
                          term_colname=term_colname,
                          included_subreddits=included_subreddits,
                          topN=topN,
-                         week=week.isoformat(),
+                         week=week,
                          rescale_idf=False)
     
     tfidf_colname='tf_idf'
@@ -78,7 +78,7 @@ def cosine_similarities_weekly(tfidf_path, outfile, term_colname, included_subre
     print(outfile)
     # do this step in parallel if we have the memory for it.
     # should be doable with pool.map
-    conn = duckdb.connect()
+    conn = duckdb.connect() 
     subreddit_names = conn.execute(f"SELECT DISTINCT subreddit, subreddit_id from read_parquet('{tfidf_path}/*/*.parquet') ORDER BY subreddit_id;").df()
 
     nterms = conn.execute(f"SELECT MAX({term_colname + '_id'}) as nterms FROM read_parquet('{tfidf_path}/*/*.parquet')").df()