diff --git a/cpp/LunaHook/LunaHook/engine32/littlecheese.cpp b/cpp/LunaHook/LunaHook/engine32/littlecheese.cpp
index 4a68ce76..4b69119b 100644
--- a/cpp/LunaHook/LunaHook/engine32/littlecheese.cpp
+++ b/cpp/LunaHook/LunaHook/engine32/littlecheese.cpp
@@ -14,21 +14,22 @@ bool littlecheese::attach_function()
     addr = reverseFindBytes(align, sizeof(align), addr - 0x100, addr);
     if (addr == 0)
         return false;
+    HookParam hp;
+    hp.offset = regoffset(ecx);
+    hp.filter_fun = [](TextBuffer *buffer, HookParam *)
+    {
+        StringFilter(buffer, "\x81\x40", 2);
+    };
     if (*(DWORD *)(addr - 4) == 0x55575653)
     {
-        HookParam hp;
         hp.address = addr - 4;
-        hp.offset = regoffset(ecx);
         hp.type = USING_CHAR | CODEC_ANSI_BE;
-        return NewHook(hp, "littlecheese");
     }
     else
     {
-        HookParam hp;
         hp.address = addr;
-        hp.offset = regoffset(ecx);
         hp.split = regoffset(edx);
         hp.type = USING_CHAR | CODEC_ANSI_BE | NO_CONTEXT | USING_SPLIT;
-        return NewHook(hp, "littlecheese");
     }
+    return NewHook(hp, "littlecheese");
 }
\ No newline at end of file