diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index a023fc3d..784b442c 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -1075,15 +1075,19 @@ void Player::_CMExecCommand(f8::MsgHdr& hdr, const cs::CMExecCommand& msg)
               TEXT("battle_server_killer_gas", "毒圈"),
               dmg_out);
     } else if (cmd == "dec_hp") {
-        float dmg_out = 0;
-        float dmg = a8::XValue(cmds[1]).GetDouble();
-        DecHP(dmg, VP_Gas, TEXT("battle_server_killer_gas", "毒圈"), VW_Gas,
-              VP_Gas,
-              TEXT("battle_server_killer_gas", "毒圈"),
-              dmg_out);
+        if (cmds.size() > 1) {
+            float dmg_out = 0;
+            float dmg = a8::XValue(cmds[1]).GetDouble();
+            DecHP(dmg, VP_Gas, TEXT("battle_server_killer_gas", "毒圈"), VW_Gas,
+                  VP_Gas,
+                  TEXT("battle_server_killer_gas", "毒圈"),
+                  dmg_out);
+        }
     } else if (cmd == "add_shield") {
-        float hp = a8::XValue(cmds[1]).GetDouble();
-        AddEnergyShield(hp);
+        if (cmds.size() > 1) {
+            float hp = a8::XValue(cmds[1]).GetDouble();
+            AddEnergyShield(hp);
+        }
     } else if (cmd == "shuaguai" && cmds.size() >= 3) {
         int hero_id = a8::XValue(cmds[1]);
         int hero_num = a8::XValue(cmds[2]);