diff --git a/src/app/calculators/rugofond/config.json b/src/app/calculators/rugofond/config.json
index 38289c769ead0cf9a196a595d314a941e0b08b70..884b56133cabd4792db9ca6fc4756a96537ad4d5 100644
--- a/src/app/calculators/rugofond/config.json
+++ b/src/app/calculators/rugofond/config.json
@@ -8,15 +8,21 @@
         ]
     },
     {
-        "id": "fs_geometry",
+        "id": "fs_geometry_crete",
         "type": "fieldset",
         "fields": [
             "L",
+            "CdT"
+        ]
+    },
+    {
+        "id": "fs_geometry_rampe",
+        "type": "fieldset",
+        "fields": [
             {
                 "id": "If",
                 "help": "hsl/pente.html"
             },
-            "CdT",
             "d65",
             "a"
         ]
diff --git a/src/app/calculators/rugofond/en.json b/src/app/calculators/rugofond/en.json
index a075a10413f1dcb029d0a1010794344ce890b44a..02f50730f7a9aabbe2278043e5d0968e10adaa2d 100644
--- a/src/app/calculators/rugofond/en.json
+++ b/src/app/calculators/rugofond/en.json
@@ -1,6 +1,7 @@
 {
     "fs_hydraulique": "Hydraulic parameters",
-    "fs_geometry": "Pass geometry",
+    "fs_geometry_crete": "Crest geometry",
+    "fs_geometry_rampe": "Ramp geometry",
     "fs_type": "Ramp type",
     "fs_pass": "Fish pass parameters",
     "fs_bloc": "Blocks parameters",
diff --git a/src/app/calculators/rugofond/fr.json b/src/app/calculators/rugofond/fr.json
index f6883198cdb64ed2671d6d0c40f214eb25fbc8d7..8e91405bedf0e43d4edf6ef602528c545995ab65 100644
--- a/src/app/calculators/rugofond/fr.json
+++ b/src/app/calculators/rugofond/fr.json
@@ -1,6 +1,7 @@
 {
     "fs_hydraulique": "Paramètres hydrauliques",
-    "fs_geometry": "Géométrie de la passe",
+    "fs_geometry_crete": "Géométrie de la crête",
+    "fs_geometry_rampe": "Géométrie de la rampe",
     "fs_type": "Type de rampe",
     "fs_pass": "Paramètres de la passe",
     "fs_bloc": "Paramètres des blocs",