diff --git a/README.md b/README.md
index eb684c1..0100070 100644
--- a/README.md
+++ b/README.md
@@ -64,3 +64,4 @@ All other information should be explored by reading the source code!
 - [2023/3/23 13:30] fix: remove non-hero units after round ends.([#23](https://github.com/Escapingbug/dotaxctf/pull/23), reporter: AAA剑圣)
 - [2023/3/24 00:22] feat: support `GetItemInSlot(slot)` to return a sandboxed item.([#24](https://github.com/Escapingbug/dotaxctf/pull/24), reporter: AAA剑圣)
 - [2023/3/27 00:22] feat: support getting game time by `GetGameTime()`.([#28](https://github.com/Escapingbug/dotaxctf/pull/28), reporter: Syclover)
+- [2023/3/27 23:53] fix: use `npc:GetEntityIndex()` and `npc:GetTeam()` to avoid unexpect behaviors.([#27](https://github.com/Escapingbug/dotaxctf/pull/27), reporter: 114@x1ct34m)
diff --git a/sandbox.lua b/sandbox.lua
index 7c388ce..74fbafd 100644
--- a/sandbox.lua
+++ b/sandbox.lua
@@ -167,7 +167,7 @@ function Sandbox:SandboxBaseNPC(npc, readonly)
         find_order
     )
         local units = FindUnitsInRadius(
-            self:GetTeam(),
+            npc:GetTeam(),
             location,
             nil, -- cacheUnit
             radius,
@@ -210,7 +210,7 @@ function Sandbox:SandboxBaseNPC(npc, readonly)
             return
         end
         ExecuteOrderFromTable{
-            UnitIndex = self:GetEntityIndex(),
+            UnitIndex = npc:GetEntityIndex(),
             OrderType = order_type,
             TargetIndex = target_index,
             AbilityIndex = ability_index,