diff --git a/configs/cpu9G20_128M_defconfig b/configs/cpu9G20_128M_defconfig
index d215cc0..650c934 100644
--- a/configs/cpu9G20_128M_defconfig
+++ b/configs/cpu9G20_128M_defconfig
@@ -8,3 +8,4 @@
 # CONFIG_CMD_LOADS is not set
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_SYS_PROMPT="CPU9G20=> "