diff --git a/server/config.ts b/server/config.ts
index bba3e334..bbbb3457 100644
--- a/server/config.ts
+++ b/server/config.ts
@@ -4,6 +4,7 @@ import fs, {Stats} from "fs";
 import os from "os";
 import _ from "lodash";
 import colors from "chalk";
+import {SearchOptions} from "ldapjs";
 
 import log from "./log";
 import Helper from "./helper";
@@ -57,7 +58,7 @@ type SearchDN = {
 	rootPassword: string;
 	filter: string;
 	base: string;
-	scope: string;
+	scope: SearchOptions["scope"];
 };
 
 type Ldap = {
diff --git a/server/plugins/auth/ldap.ts b/server/plugins/auth/ldap.ts
index 9e7a3e37..d30b9a1c 100644
--- a/server/plugins/auth/ldap.ts
+++ b/server/plugins/auth/ldap.ts
@@ -67,11 +67,11 @@ function advancedLdapAuth(user: string, password: string, callback: (success: bo
 	});
 
 	const base = config.ldap.searchDN.base;
-	const searchOptions = {
+	const searchOptions: SearchOptions = {
 		scope: config.ldap.searchDN.scope,
 		filter: `(&(${config.ldap.primaryKey}=${userDN})${config.ldap.searchDN.filter})`,
 		attributes: ["dn"],
-	} as SearchOptions;
+	};
 
 	ldapclient.on("error", function (err: Error) {
 		log.error(`Unable to connect to LDAP server: ${err.toString()}`);
@@ -178,12 +178,12 @@ function advancedLdapLoadUsers(users: string[], callbackLoadUser) {
 
 		const remainingUsers = new Set(users);
 
-		const searchOptions = {
+		const searchOptions: SearchOptions = {
 			scope: config.ldap.searchDN.scope,
 			filter: `${config.ldap.searchDN.filter}`,
 			attributes: [config.ldap.primaryKey],
 			paged: true,
-		} as SearchOptions;
+		};
 
 		ldapclient.search(base, searchOptions, function (err2, res) {
 			if (err2) {