diff --git a/src/app/calculators/macrorugo-compound/macrorugo-compound.en.json b/src/app/calculators/macrorugo-compound/macrorugo-compound.en.json
index e0e7a98dc68171a10df7351a100c4aff7233b8c4..946ba5a5c9664696b685182d3af9342f0b27a932 100644
--- a/src/app/calculators/macrorugo-compound/macrorugo-compound.en.json
+++ b/src/app/calculators/macrorugo-compound/macrorugo-compound.en.json
@@ -13,10 +13,10 @@
     "PBD": "Diameter",
     "PBH": "Height",
     "Cd0": "Shape (1 for round, 2 for square)",
-    "ZRL": "Left apron elevation",
-    "ZRR": "Right apron elevation",
+    "ZRL": "Upper upstream ramp apron elevation",
+    "ZRR": "Lower upstream ramp apron elevation",
     "BR": "Total width",
-    "ZF1": "Apron elevation",
+    "ZF1": "Upstream ramp apron elevation",
     "B": "Width",
     "Y": "Water depth",
     "xCenter": "Mid-apron abscissa",
diff --git a/src/app/calculators/macrorugo-compound/macrorugo-compound.fr.json b/src/app/calculators/macrorugo-compound/macrorugo-compound.fr.json
index 2422a8c9bc82ec0609aa57cc19fc19a8402501e5..258e53dccb006cb13b77f58801825547757c260f 100644
--- a/src/app/calculators/macrorugo-compound/macrorugo-compound.fr.json
+++ b/src/app/calculators/macrorugo-compound/macrorugo-compound.fr.json
@@ -13,10 +13,10 @@
     "PBD": "Diamètre",
     "PBH": "Hauteur",
     "Cd0": "Forme (1 pour rond, 2 pour carré)",
-    "ZRL": "Cote de radier gauche",
-    "ZRR": "Cote de radier droite",
+    "ZRL": "Cote de radier haut amont rampe",
+    "ZRR": "Cote de radier bas amont rampe",
     "BR": "Largeur totale",
-    "ZF1": "Cote de radier",
+    "ZF1": "Cote de radier amont rampe",
     "B": "Largeur",
     "Y": "Profondeur",
     "xCenter": "Abscisse du milieu du radier",