diff --git a/apps/api/src/app/upload/dtos/upload-request.dto.ts b/apps/api/src/app/upload/dtos/upload-request.dto.ts
index fbd25931a..84209f177 100644
--- a/apps/api/src/app/upload/dtos/upload-request.dto.ts
+++ b/apps/api/src/app/upload/dtos/upload-request.dto.ts
@@ -37,7 +37,7 @@ export class UploadRequestDto {
     required: false,
   })
   @IsOptional()
-  @IsJSON()
+  @IsString()
   extra?: string;
 
   @ApiProperty({
diff --git a/apps/web/components/imports/destination/WidgetConfigurationModal/WidgetConfigurationModal.tsx b/apps/web/components/imports/destination/WidgetConfigurationModal/WidgetConfigurationModal.tsx
index ee72ff30a..21ce5d2c9 100644
--- a/apps/web/components/imports/destination/WidgetConfigurationModal/WidgetConfigurationModal.tsx
+++ b/apps/web/components/imports/destination/WidgetConfigurationModal/WidgetConfigurationModal.tsx
@@ -34,7 +34,7 @@ export function WidgetConfigurationModal({ onConfigSubmit, isLoading }: WidgetCo
   const onSubmit = (data: WidgetConfigFormData) => {
     onConfigSubmit({
       authHeaderValue: data.authHeaderValue,
-      extra: data.extraData,
+      extra: JSON.parse(data.extraData || '{}'),
     });
   };