diff --git a/mappings/net/minecraft/class_6461.mapping b/mappings/net/minecraft/class_6461.mapping
new file mode 100644
index 0000000000..37409f6765
--- /dev/null
+++ b/mappings/net/minecraft/class_6461.mapping
@@ -0,0 +1,3 @@
+CLASS net/minecraft/class_6461
+	FIELD field_34212 OCEAN_BIOMES [[Lnet/minecraft/class_5321;
+	FIELD field_34215 MOUNTAIN_BIOMES [[Lnet/minecraft/class_5321;