diff --git a/configs/stm32mp15-microgea-stm32mp1-microdev2_defconfig b/configs/stm32mp15-microgea-stm32mp1-microdev2_defconfig
index 39f7d96..58ec363 100644
--- a/configs/stm32mp15-microgea-stm32mp1-microdev2_defconfig
+++ b/configs/stm32mp15-microgea-stm32mp1-microdev2_defconfig
@@ -21,6 +21,7 @@
 CONFIG_SPL_I2C=y
 CONFIG_SPL_POWER=y
 CONFIG_SYS_PROMPT="STM32MP> "
+CONFIG_SYS_PBSIZE=1050
 CONFIG_CMD_ADTIMG=y
 CONFIG_CMD_ERASEENV=y
 CONFIG_CMD_MEMINFO=y