diff --git a/src/db_utils/fill_exon_n_gene_table.py b/src/db_utils/fill_exon_n_gene_table.py
index d8d0fb879838fe84bf4385a89af59622266cbd3b..3add88d7afe774d85f0c675b512f6dd39c08b66b 100755
--- a/src/db_utils/fill_exon_n_gene_table.py
+++ b/src/db_utils/fill_exon_n_gene_table.py
@@ -21,8 +21,9 @@ def get_genomic_region(bed_file: Path) -> pd.DataFrame:
     :param bed_file: A bed file containing intern exons
     :return: the bed file as a dataframe
     """
-    df = pd.read_csv(bed_file, sep="\t")
-    df.columns = ["chromosome", "start", "stop", "id", "score", "strand"]
+    df = pd.read_csv(bed_file, sep="\t",
+                     names=["chromosome", "start", "stop", "id",
+                            "score", "strand"])
     df = df.loc[(df.stop - df.start > 2), :]
     return df