diff --git a/backend/src/graphql/resolver/util/findUserByIdentifier.ts b/backend/src/graphql/resolver/util/findUserByIdentifier.ts
index dd4f9a775..bd9a25071 100644
--- a/backend/src/graphql/resolver/util/findUserByIdentifier.ts
+++ b/backend/src/graphql/resolver/util/findUserByIdentifier.ts
@@ -4,7 +4,7 @@ import { validate, version } from 'uuid'
 
 import { LogError } from '@/server/LogError'
 
-import { validAliasRegex } from './validateAlias'
+import { VALID_ALIAS_REGEX } from './validateAlias'
 
 export const findUserByIdentifier = async (identifier: string): Promise<DbUser> => {
   let user: DbUser | undefined
@@ -29,7 +29,7 @@ export const findUserByIdentifier = async (identifier: string): Promise<DbUser>
     }
     user = userContact.user
     user.emailContact = userContact
-  } else if (validAliasRegex.exec(identifier)) {
+  } else if (VALID_ALIAS_REGEX.exec(identifier)) {
     user = await DbUser.findOne({ where: { alias: identifier }, relations: ['emailContact'] })
     if (!user) {
       throw new LogError('No user found to given identifier', identifier)
diff --git a/backend/src/graphql/resolver/util/validateAlias.ts b/backend/src/graphql/resolver/util/validateAlias.ts
index 88cb9b982..721733be4 100644
--- a/backend/src/graphql/resolver/util/validateAlias.ts
+++ b/backend/src/graphql/resolver/util/validateAlias.ts
@@ -4,9 +4,9 @@ import { User as DbUser } from '@entity/User'
 import { LogError } from '@/server/LogError'
 
 // eslint-disable-next-line security/detect-unsafe-regex
-export const validAliasRegex = /^(?=.{3,20}$)[a-zA-Z0-9]+(?:[_-][a-zA-Z0-9]+?)*$/
+export const VALID_ALIAS_REGEX = /^(?=.{3,20}$)[a-zA-Z0-9]+(?:[_-][a-zA-Z0-9]+?)*$/
 
-const reservedAlias = [
+const RESERVED_ALIAS = [
   'admin',
   'email',
   'gast',
@@ -27,8 +27,9 @@ const reservedAlias = [
 export const validateAlias = async (alias: string): Promise<boolean> => {
   if (alias.length < 3) throw new LogError('Given alias is too short', alias)
   if (alias.length > 20) throw new LogError('Given alias is too long', alias)
-  if (!alias.match(validAliasRegex)) throw new LogError('Invalid characters in alias', alias)
-  if (reservedAlias.includes(alias.toLowerCase())) throw new LogError('Alias is not allowed', alias)
+  if (!alias.match(VALID_ALIAS_REGEX)) throw new LogError('Invalid characters in alias', alias)
+  if (RESERVED_ALIAS.includes(alias.toLowerCase()))
+    throw new LogError('Alias is not allowed', alias)
   const aliasInUse = await DbUser.find({
     where: { alias: Raw((a) => `LOWER(${a}) = "${alias.toLowerCase()}"`) },
   })