diff --git a/src/app/calculators/parallelstructure/config.json b/src/app/calculators/parallelstructure/config.json
index 0e8c2886dd4f02da96d30961f3d87485b8866b3c..26c3cf9a4414b5e672b7f5dc88a34ac15195da06 100644
--- a/src/app/calculators/parallelstructure/config.json
+++ b/src/app/calculators/parallelstructure/config.json
@@ -13,7 +13,7 @@
         "id": "fs_ouvrage",
         "type": "fieldset_template",
         "calcType": "Structure",
-        "defaultStructType": "VanneFondRectangulaire",
+        "defaultStructType": "SeuilOrificeRectangulaire",
         "defaultLoiDebit": "GateCem88v",
         "fields": [
             {