diff --git a/src/utils/filters/mongo-unique-field.filter.ts b/src/utils/filters/mongo-unique-field.filter.ts
index a17aae9..8c23320 100644
--- a/src/utils/filters/mongo-unique-field.filter.ts
+++ b/src/utils/filters/mongo-unique-field.filter.ts
@@ -11,9 +11,11 @@ export class MongoUniqueFieldFilter implements ExceptionFilter {
   catch(exception: MongoServerError, host: ArgumentsHost) {
     const next = host.switchToHttp().getNext();
 
-    if (exception.code !== 11000) next(exception);
-
-    const fields = Object.keys(exception.keyPattern).join('", "');
-    next(new BadRequestException(`Unique fields "${fields}" already in use.`));
+    if (exception.code === 11000) {
+      const fields = Object.keys(exception.keyPattern).join('", "');
+      next(new BadRequestException(`Unique fields "${fields}" already in use.`));
+    } else {
+      next(exception);
+    }
   }
 }