diff --git a/packages/backend/src/core/IdService.ts b/packages/backend/src/core/IdService.ts
index 0e8a7b13ad..31c0819e50 100644
--- a/packages/backend/src/core/IdService.ts
+++ b/packages/backend/src/core/IdService.ts
@@ -10,20 +10,20 @@ import { bindThis } from '@/decorators.js';
 
 @Injectable()
 export class IdService {
-	private metohd: string;
+	private method: string;
 
 	constructor(
 		@Inject(DI.config)
 		private config: Config,
 	) {
-		this.metohd = config.id.toLowerCase();
+		this.method = config.id.toLowerCase();
 	}
 
 	@bindThis
 	public genId(date?: Date): string {
 		if (!date || (date > new Date())) date = new Date();
 	
-		switch (this.metohd) {
+		switch (this.method) {
 			case 'aid': return genAid(date);
 			case 'meid': return genMeid(date);
 			case 'meidg': return genMeidg(date);
diff --git a/packages/backend/src/misc/id/aid.ts b/packages/backend/src/misc/id/aid.ts
index 87e6888263..19c8546f95 100644
--- a/packages/backend/src/misc/id/aid.ts
+++ b/packages/backend/src/misc/id/aid.ts
@@ -6,14 +6,14 @@ import * as crypto from 'node:crypto';
 const TIME2000 = 946684800000;
 let counter = crypto.randomBytes(2).readUInt16LE(0);
 
-function getTime(time: number) {
+function getTime(time: number): string {
 	time = time - TIME2000;
 	if (time < 0) time = 0;
 
 	return time.toString(36).padStart(8, '0');
 }
 
-function getNoise() {
+function getNoise(): string {
 	return counter.toString(36).padStart(2, '0').slice(-2);
 }