diff --git a/api-v3/src/asset-master/dto/list-asset-tree-query.dto.ts b/api-v3/src/asset-master/dto/list-asset-tree-query.dto.ts
index 21f1d06..cfcbb16 100644
--- a/api-v3/src/asset-master/dto/list-asset-tree-query.dto.ts
+++ b/api-v3/src/asset-master/dto/list-asset-tree-query.dto.ts
@@ -37,4 +37,9 @@ export class ListAssetTreeQueryDto {
   @Transform(({ value }) => value === 'true' ? true : value === 'false' ? false : value)
   @IsBoolean()
   hasGeometry?: boolean;
+
+  @IsOptional()
+  @Transform(({ value }) => value === 'true' ? true : value === 'false' ? false : value)
+  @IsBoolean()
+  inventoryOnly?: boolean;
 }