diff --git a/arch/risc-v/src/k210/k210_start.c b/arch/risc-v/src/k210/k210_start.c
index 88b1c38d3e7..bd5084b3e75 100644
--- a/arch/risc-v/src/k210/k210_start.c
+++ b/arch/risc-v/src/k210/k210_start.c
@@ -87,8 +87,6 @@ void __k210_start(uint32_t mhartid)
   const uint32_t *src;
   uint32_t *dest;
 
-  g_serial_ok = false;
-
   if (0 < mhartid)
     {
       goto cpu1;