diff --git a/arch/arm/src/gd32f4/gd32f4xx_serial.c b/arch/arm/src/gd32f4/gd32f4xx_serial.c
index f4a3659721d..7291a9dceec 100644
--- a/arch/arm/src/gd32f4/gd32f4xx_serial.c
+++ b/arch/arm/src/gd32f4/gd32f4xx_serial.c
@@ -2763,7 +2763,7 @@ void arm_earlyserialinit(void)
 
   for (i = 0; i < GD32_NUSART; i++)
     {
-      if (g_uart_devs[i]->priv)
+      if (g_uart_devs[i] && g_uart_devs[i]->priv)
         {
           up_disableusartint(g_uart_devs[i]->priv, 0);
         }