diff --git a/target/linux/ramips/image/lzma-loader/src/board.c b/target/linux/ramips/image/lzma-loader/src/board.c
index 9f87cddec71..de02f58b9f4 100644
--- a/target/linux/ramips/image/lzma-loader/src/board.c
+++ b/target/linux/ramips/image/lzma-loader/src/board.c
@@ -40,7 +40,7 @@
 #define UART_LSR			(UART_BASE + 0x14)
 #define UART_LSR_MASK			UART_LSR_THRE
 #elif defined(SOC_RT305X)
-#define UART_BASE			KSEG1ADDR(0x10000500)
+#define UART_BASE			KSEG1ADDR(0x10000c00)
 #define UART_THR			(UART_BASE + 0x04)
 #define UART_LSR			(UART_BASE + 0x1c)
 #define UART_LSR_MASK			UART_LSR_THRE