diff --git a/configs/mscc_jr2_defconfig b/configs/mscc_jr2_defconfig
index 1b77a08..65b5cd8 100644
--- a/configs/mscc_jr2_defconfig
+++ b/configs/mscc_jr2_defconfig
@@ -26,6 +26,7 @@
 CONFIG_DISPLAY_CPUINFO=y
 CONFIG_BOARD_EARLY_INIT_R=y
 CONFIG_SYS_PROMPT="jr2 # "
+CONFIG_SYS_PBSIZE=279
 # CONFIG_CMD_BDI is not set
 # CONFIG_CMD_CONSOLE is not set
 # CONFIG_CMD_ELF is not set