diff --git a/mappings/net/minecraft/world/gen/chunk/ChunkGeneratorSettings.mapping b/mappings/net/minecraft/world/gen/chunk/ChunkGeneratorSettings.mapping
index 6590f65e96..94b4cfa2a3 100644
--- a/mappings/net/minecraft/world/gen/chunk/ChunkGeneratorSettings.mapping
+++ b/mappings/net/minecraft/world/gen/chunk/ChunkGeneratorSettings.mapping
@@ -26,7 +26,7 @@ CLASS net/minecraft/class_5284 net/minecraft/world/gen/chunk/ChunkGeneratorSetti
 		ARG 3 defaultBlock
 		ARG 4 defaultFluid
 		ARG 5 surfaceRule
-		ARG 6 bedrockCeilingY
+		ARG 6 seaLevel
 		ARG 7 mobGenerationDisabled
 		ARG 8 aquifers
 		ARG 9 noiseCaves