diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 46a16969..a9c4afc7 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -396,7 +396,7 @@ void Player::UpdateSelectWeapon()
 {
     if (!FreezeOperate()) {
 #ifdef NEW_WEAPON_SYS
-        if (selected_weapon_idx >= GUN_SLOT0 && selected_weapon_idx < GUN_SLOT2) {
+        if (selected_weapon_idx >= GUN_SLOT0 && selected_weapon_idx <= GUN_SLOT2) {
 #else
         if (selected_weapon_idx >= 0 && selected_weapon_idx < weapons.size()) {
 #endif