diff --git a/src/cool_seq_tool/sources/uta_database.py b/src/cool_seq_tool/sources/uta_database.py
index 0b3102de..c334c5ae 100644
--- a/src/cool_seq_tool/sources/uta_database.py
+++ b/src/cool_seq_tool/sources/uta_database.py
@@ -923,7 +923,7 @@ async def get_transcripts(
         results = [
             (r["pro_ac"], r["tx_ac"], r["alt_ac"], r["cds_start_i"]) for r in results
         ]
-        results_df = pl.DataFrame(results, schema=schema)
+        results_df = pl.DataFrame(results, schema=schema, orient="row")
         if results:
             results_df = results_df.unique()
         return results_df