diff --git a/project/Core/Src/tcp_cmd.c b/project/Core/Src/tcp_cmd.c
index 151d67d..2524a4f 100644
--- a/project/Core/Src/tcp_cmd.c
+++ b/project/Core/Src/tcp_cmd.c
@@ -8,7 +8,7 @@
 #define MAX_TOKENS  10
 #define MAX_CMD_LEN 50
 
-#define LINUX
+#define NCAT
 
 static const char* TAG = "tcp_cmd";
 static uint32_t color_txt = 0xffffffff; // Store text color
@@ -491,7 +491,7 @@ err_t tcp_cmd_recv(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err) {
     if (close_conn) {
         LOG_INFO(TAG, "Closing connection");
         tcp_cmd_close(pcb);
-#ifdef LINUX
+#ifdef NCAT
     } else {
         tcp_cmd_write(pcb, "$>");
     }