diff --git a/linux/devices/ploc/PlocSupvUartMan.cpp b/linux/devices/ploc/PlocSupvUartMan.cpp
index ee232f47..a246d97c 100644
--- a/linux/devices/ploc/PlocSupvUartMan.cpp
+++ b/linux/devices/ploc/PlocSupvUartMan.cpp
@@ -1132,7 +1132,7 @@ int PlocSupvUartManager::removeHdlcFramingWithCrcCheck(const uint8_t* src, size_
   }
   // calc crc16
   uint16_t calcCrc = calc_crc16_buff_reflected(dst, tlen - 2);
-  uint16_t crc;
+  uint16_t crc = 0;
   size_t dummy;
   SerializeAdapter::deSerialize(&crc, dst + tlen - 2, &dummy, SerializeIF::Endianness::LITTLE);
   if (calcCrc != crc) {