diff --git a/indexers/scripts/clean_parquet.py b/indexers/scripts/clean_parquet.py
index 5f9343cc..fdd735f0 100644
--- a/indexers/scripts/clean_parquet.py
+++ b/indexers/scripts/clean_parquet.py
@@ -2,6 +2,7 @@
 from pathlib import Path
 import pandas as pd
 import os
+from utils import convert_case
 
 RAW_DATA_PATH = "/parquet-data/indexers/raw"
 CLEAN_DATA_PATH = "/parquet-data/indexers/clean"
@@ -33,6 +34,7 @@ def clean_parquet_files(network_name: str, protocol_name: str):
             if df.empty:
                 empty_files += 1
                 continue
+            df.columns = [convert_case(col) for col in df.columns]
             event_dir.mkdir(parents=True, exist_ok=True)
             df.to_parquet(output_file, index=False)
             written_files += 1
diff --git a/indexers/scripts/listener.py b/indexers/scripts/listener.py
index 74bcb6b9..54fc09bc 100644
--- a/indexers/scripts/listener.py
+++ b/indexers/scripts/listener.py
@@ -1,22 +1,16 @@
 from pathlib import Path
 import time
-import re
 import pandas as pd
 from watchdog.observers import Observer
 from watchdog.events import FileSystemEventHandler
 import clickhouse_connect
-from utils import create_table_from_path, insert_data_from_path
+from utils import create_table_from_path, insert_data_from_path, convert_case
 
 CLICKHOUSE_INTERNAL_PATH = "/var/lib/clickhouse/user_files/parquet-data/indexers/clean"
 RAW_DATA_PATH = "/parquet-data/indexers/raw"
 CLEAN_DATA_PATH = "/parquet-data/indexers/clean"
 
 
-def convert_case(name):
-    snake_case = re.sub(r"(?<!^)(?=[A-Z])", "_", name).lower()
-    return snake_case
-
-
 class FolderEventHandler(FileSystemEventHandler):
     def __init__(self):
         super().__init__()
diff --git a/indexers/scripts/utils.py b/indexers/scripts/utils.py
index 91f064b6..f28f2e96 100644
--- a/indexers/scripts/utils.py
+++ b/indexers/scripts/utils.py
@@ -1,3 +1,4 @@
+import re
 from clickhouse_connect.driver.client import Client
 
 
@@ -22,3 +23,8 @@ def insert_data_from_path(client: Client, db_name: str, table_name: str, path: s
         client.command(query)
     except Exception as e:
         print(f"Error inserting data into {db_name}.{table_name}: {e}")
+
+
+def convert_case(name):
+    snake_case = re.sub(r"(?<!^)(?=[A-Z])", "_", name).lower()
+    return snake_case