diff --git a/mappings/net/minecraft/datafixer/fix/LeavesFix.mapping b/mappings/net/minecraft/datafixer/fix/LeavesFix.mapping
index 0091a4cd80..9150009acb 100644
--- a/mappings/net/minecraft/datafixer/fix/LeavesFix.mapping
+++ b/mappings/net/minecraft/datafixer/fix/LeavesFix.mapping
@@ -1,4 +1,22 @@
 CLASS net/minecraft/class_1191 net/minecraft/datafixer/fix/LeavesFix
+	FIELD field_5686 LOGS_MAP Ljava/util/Set;
+	FIELD field_5688 LEAVES_MAP Lit/unimi/dsi/fastutil/objects/Object2IntMap;
+	CLASS class_1192 LeavesLogFixer
+		FIELD field_5689 leafIndices Lit/unimi/dsi/fastutil/ints/IntSet;
+		FIELD field_5690 leafStates Lit/unimi/dsi/fastutil/ints/Int2IntMap;
+		FIELD field_5691 logIndices Lit/unimi/dsi/fastutil/ints/IntSet;
+		METHOD method_5065 getDistanceToLog (I)I
+		METHOD method_5068 isLog (I)Z
+		METHOD method_5070 computeLeafStates (III)V
+		METHOD method_5071 isLeaf (I)Z
+		METHOD method_5072 createLeafProperties (Lcom/mojang/datafixers/Dynamic;Ljava/lang/String;ZI)Lcom/mojang/datafixers/Dynamic;
 	CLASS class_1193 ListFixer
-		FIELD field_5692 data Ljava/util/List;
+		FIELD field_5692 properties Ljava/util/List;
+		FIELD field_5696 blockStateMap Lnet/minecraft/class_3508;
+		METHOD method_5074 computeFixableBlockStates (Lcom/mojang/datafixers/Dynamic;)V
+		METHOD method_5075 needsFix (I)I
 		METHOD method_5076 needsFix ()Z
+		METHOD method_5079 isFixed ()Z
+		METHOD method_5082 computeFlags (Ljava/lang/String;ZI)I
+			ARG 1 leafBlockName
+			ARG 2 persistent