diff --git a/build-data/reobf-mappings-patch.tiny b/build-data/reobf-mappings-patch.tiny
index f39f29c500..3f1d53cd4b 100644
--- a/build-data/reobf-mappings-patch.tiny
+++ b/build-data/reobf-mappings-patch.tiny
@@ -19,6 +19,10 @@ c	net/minecraft/server/level/ServerLevel	net/minecraft/server/level/WorldServer
 c	net/minecraft/world/level/chunk/LevelChunk	net/minecraft/world/level/chunk/Chunk
 	f	Lnet/minecraft/server/level/ServerLevel;	level	q
 
+# See mappings-patch.tiny
+c	net/minecraft/server/level/ChunkMap	net/minecraft/server/level/PlayerChunkMap
+	f	Lnet/minecraft/server/level/ChunkMap$ChunkDistanceManager;	distanceManager	D
+
 # 1.18 todo: verify paper still changes this
 # Paper changes type
 c	net/minecraft/core/MappedRegistry	net/minecraft/core/RegistryMaterials