diff --git a/src/app/calculators/rugofond/config.json b/src/app/calculators/rugofond/config.json
index 66eace5898d0e67f9daf10b19fd10e2ed36c9669..ecccb07ad650da58973f6e7b7207cb13decb50c5 100644
--- a/src/app/calculators/rugofond/config.json
+++ b/src/app/calculators/rugofond/config.json
@@ -16,7 +16,7 @@
                 "id": "If",
                 "help": "hsl/pente.html"
             },
-            "Cdt",
+            "CdT",
             "d65",
             {
                 "id": "Ks",
diff --git a/src/app/calculators/rugofond/en.json b/src/app/calculators/rugofond/en.json
index b0f5ca0ff36fa449f38cba7d8f485994ffcfa504..7902781f7d07c2d02583c692f5857d1176417cc9 100644
--- a/src/app/calculators/rugofond/en.json
+++ b/src/app/calculators/rugofond/en.json
@@ -22,7 +22,7 @@
     "ZR1": "Upper upstream ramp bottom elevation",
     "Nb": "Number of baffles",
     "L": "Total width of ramp",
-    "Cdt": "Discharge coefficient",
+    "CdT": "Discharge coefficient",
     "d65": "d65",
     
 
diff --git a/src/app/calculators/rugofond/fr.json b/src/app/calculators/rugofond/fr.json
index afefbc1a9f6772ab3006b5f56247ab8074d4b16c..e289f7737d8e626e1e6a5d447a62934152bd90e4 100644
--- a/src/app/calculators/rugofond/fr.json
+++ b/src/app/calculators/rugofond/fr.json
@@ -17,7 +17,7 @@
     "ZR1": "Cote de fond haut amont rampe",
     "Nb": "Nombre de ralentisseurs",
     "L": "Largeur totale de la rampe", 
-    "Cdt": "Coefficient de débit",
+    "CdT": "Coefficient de débit",
     "d65": "d65",
     
     "PASSTYPE_0": "Radiers multiples",