diff --git a/prj/TCPClient/Middle/QDXnetworkStack/qdx_tcp_logic.c b/prj/TCPClient/Middle/QDXnetworkStack/qdx_tcp_logic.c
index 944271d..cd5f34f 100644
--- a/prj/TCPClient/Middle/QDXnetworkStack/qdx_tcp_logic.c
+++ b/prj/TCPClient/Middle/QDXnetworkStack/qdx_tcp_logic.c
@@ -662,7 +662,7 @@ TcpLogic_BuildAndSendTemperatureFrame(TcpTxBuffer_t *io_buffer,
      We can't easily prepend headers to later fragments inline. */
 
   uint32_t offset = 0;
-  uint8_t frag_buf[HEADER_SIZE + MAX_FRAGMENT_PAYLOAD + CRC_SIZE];
+  static uint8_t frag_buf[HEADER_SIZE + MAX_FRAGMENT_PAYLOAD + CRC_SIZE];
   uint32_t frag_count =
       (total_tlv_len + MAX_FRAGMENT_PAYLOAD - 1) / MAX_FRAGMENT_PAYLOAD;