diff --git a/process_report/invoices/invoice.py b/process_report/invoices/invoice.py
index 23c2371..8599ec8 100644
--- a/process_report/invoices/invoice.py
+++ b/process_report/invoices/invoice.py
@@ -79,7 +79,7 @@ def _prepare_export(self):
         pass
 
     def export(self):
-        self.data.to_csv(self.output_path)
+        self.data.to_csv(self.output_path, index=False)
 
     def export_s3(self, s3_bucket):
         s3_bucket.upload_file(self.output_path, self.output_s3_key)