diff --git a/configs/MK808C_defconfig b/configs/MK808C_defconfig
index 3ed962d..f4d31b3 100644
--- a/configs/MK808C_defconfig
+++ b/configs/MK808C_defconfig
@@ -6,6 +6,7 @@
 CONFIG_DRAM_CLK=384
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SPL_I2C=y
+CONFIG_SYS_PBSIZE=1024
 CONFIG_SYS_I2C_MVTWSI=y
 CONFIG_SYS_I2C_SLAVE=0x7f
 CONFIG_SYS_I2C_SPEED=400000