diff --git a/packages/backend/src/misc/is-duplicate-key-value-error.ts b/packages/backend/src/misc/is-duplicate-key-value-error.ts
index 2ba78f4d2f6a..f5343d187cbd 100644
--- a/packages/backend/src/misc/is-duplicate-key-value-error.ts
+++ b/packages/backend/src/misc/is-duplicate-key-value-error.ts
@@ -1,5 +1,5 @@
-import { QueryFailedError } from "typeorm";
+import { QueryFailedError } from 'typeorm';
 
 export function isDuplicateKeyValueError(e: unknown | Error): boolean {
-	return e instanceof QueryFailedError && e.driverError.code === "23505";
+	return e instanceof QueryFailedError && e.driverError.code === '23505';
 }