diff --git a/mappings/net/minecraft/network/packet/s2c/play/CommandTreeS2CPacket.mapping b/mappings/net/minecraft/network/packet/s2c/play/CommandTreeS2CPacket.mapping
index fbdbb305cd..a7ec1c35b8 100644
--- a/mappings/net/minecraft/network/packet/s2c/play/CommandTreeS2CPacket.mapping
+++ b/mappings/net/minecraft/network/packet/s2c/play/CommandTreeS2CPacket.mapping
@@ -3,7 +3,7 @@ CLASS net/minecraft/class_2641 net/minecraft/network/packet/s2c/play/CommandTree
 	FIELD field_38039 nodes Ljava/util/List;
 	FIELD field_47914 CODEC Lnet/minecraft/class_9139;
 	METHOD <init> (Lcom/mojang/brigadier/tree/RootCommandNode;)V
-		ARG 1 rootNode
+		ARG 1 rootIndex
 	METHOD <init> (Lnet/minecraft/class_2540;)V
 		ARG 1 buf
 	METHOD method_11401 createNodeData (Lcom/mojang/brigadier/tree/CommandNode;Lit/unimi/dsi/fastutil/objects/Object2IntMap;)Lnet/minecraft/class_2641$class_2642;