diff --git a/backend/src/share/dto/sharePassword.dto.ts b/backend/src/share/dto/sharePassword.dto.ts
index f1bcf731..c74761fc 100644
--- a/backend/src/share/dto/sharePassword.dto.ts
+++ b/backend/src/share/dto/sharePassword.dto.ts
@@ -1,6 +1,7 @@
-import { IsString } from "class-validator";
+import { IsOptional, IsString } from "class-validator";
 
 export class SharePasswordDto {
   @IsString()
+  @IsOptional()
   password: string;
 }