diff --git a/IR_Decoder.h b/IR_Decoder.h
index ac130a2..c69f2a6 100644
--- a/IR_Decoder.h
+++ b/IR_Decoder.h
@@ -73,7 +73,7 @@ public:
         uint8_t _msgType = 0;
         uint16_t _addrFrom = 0;
         uint16_t _addrTo = 0;
-        uint8_t* _data = nullptr;
+        uint8_t _data[bytePerPack];
         uint8_t _dataRawSize = 0;
         uint16_t _crcPackVal = 0;
         uint16_t _crcCalcVal = 0;
@@ -85,9 +85,7 @@ public:
             _dataRawSize = len;
             _err = err;
             _bitPeriod = rTime;
-            if (_data != nullptr) { delete _data; _data = nullptr; }
-            _data = new uint8_t[len];
-            for (uint8_t i = 0; i < len; i++) { _data[i] = ptr[i]; }
+            for (uint8_t i = 0; i < len && len<bytePerPack; i++) { _data[i] = ptr[i]; }
             _msgType = _data[0];
             ini();
             _isAvaliable = true;