diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/network/ServerPlayNetHandlerMixin.java b/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/network/ServerPlayNetHandlerMixin.java
index 8a4cf885..2ab6d4ad 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/network/ServerPlayNetHandlerMixin.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/network/ServerPlayNetHandlerMixin.java
@@ -759,7 +759,9 @@ public abstract class ServerPlayNetHandlerMixin implements ServerPlayNetHandlerB
         switch (packetplayinblockdig_enumplayerdigtype) {
             case SWAP_ITEM_WITH_OFFHAND: {
                 if (!this.player.isSpectator()) {
-                    // ItemStack itemstack = this.player.getItemInHand(InteractionHand.OFF_HAND);
+                    // BetterCombat mixin compatibility
+                    // https://github.com/ZsoltMolnarrr/BetterCombat/blob/9090f08faf4a3e51256c8a7a13af94a80b6128c0/common/src/main/java/net/bettercombat/mixin/ServerPlayNetworkHandlerMixin.java
+                    ItemStack offhandStack = this.player.getItemInHand(InteractionHand.OFF_HAND);
                     var event = net.minecraftforge.common.ForgeHooks.onLivingSwapHandItems(this.player);
                     if (event.isCanceled()) return;
                     ItemStack itemstack = event.getItemSwappedToMainHand();