diff --git a/src/bed_handler/select_regulated_near_ctcf_exons.py b/src/bed_handler/select_regulated_near_ctcf_exons.py
index 6894170ecd693c2831f0f16cf003ffd85ba58130..a5a1e88b97021bec8c09da7975d1d9df752d3478 100644
--- a/src/bed_handler/select_regulated_near_ctcf_exons.py
+++ b/src/bed_handler/select_regulated_near_ctcf_exons.py
@@ -168,11 +168,13 @@ def create_bed_ctcf_exon(reg: str, threshold: int,
     df_exon = filter_bed(BedConfig.exon_bed, list_exons)
     df_gene = filter_bed(BedConfig.gene_bed, list_genes)
     df_exon.to_csv(BedConfig.bed.output /
-                   f"{name_near}CTCF_{threshold}_{location}_ddx_{reg}_{i0}_exon.bed",
+                   f"{name_near}CTCF_{threshold}_{location}_ddx_"
+                   f"{reg}_{i0}_exon.bed",
                    sep="\t",
                    index=False)
     df_gene.to_csv(BedConfig.bed.output /
-                   f"{name_near}CTCF_{threshold}_{location}_ddx_{reg}_{i0}_gene.bed",
+                   f"{name_near}CTCF_{threshold}_{location}_ddx_"
+                   f"{reg}_{i0}_gene.bed",
                    sep="\t",
                    index=False)