diff --git a/src/config/utils.ts b/src/config/utils.ts
index 2064ce19f..50a695f6e 100644
--- a/src/config/utils.ts
+++ b/src/config/utils.ts
@@ -4,22 +4,17 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-export const toArrayConfig: (
-  configValue: string,
-  separator?: string,
-) => string[] = (configValue: string, separator = ',') => {
+export function toArrayConfig(configValue: string, separator = ','): string[] {
   if (!configValue) {
     return [];
   }
-
   if (!configValue.includes(separator)) {
     return [configValue.trim()];
   }
-
   return configValue.split(separator).map((arrayItem) => arrayItem.trim());
-};
+}
 
-export const buildErrorMessage = (errorMessages: string[]): string => {
+export function buildErrorMessage(errorMessages: string[]): string {
   let totalErrorMessage = 'There were some errors with your configuration:';
   for (const message of errorMessages) {
     totalErrorMessage += '\n - ';
@@ -28,14 +23,14 @@ export const buildErrorMessage = (errorMessages: string[]): string => {
   totalErrorMessage +=
     '\nFor further information, have a look at our configuration docs at https://docs.hedgedoc.org/configuration';
   return totalErrorMessage;
-};
+}
 
-export const replaceAuthErrorsWithEnvironmentVariables = (
+export function replaceAuthErrorsWithEnvironmentVariables(
   message: string,
   name: string,
   replacement: string,
   arrayOfNames: string[],
-): string => {
+): string {
   // this builds a regex like /"gitlab\[(\d+)]\./ to extract the position in the arrayOfNames
   const regex = new RegExp('"' + name + '\\[(\\d+)]\\.', 'g');
   message = message.replace(
@@ -91,4 +86,4 @@ export const replaceAuthErrorsWithEnvironmentVariables = (
   message = message.replace('.rolesClaim', '_ROLES_CLAIM');
   message = message.replace('.accessRole', '_ACCESS_ROLE');
   return message;
-};
+}