diff --git a/configs/topic_miamilite_defconfig b/configs/topic_miamilite_defconfig
index e414594..301a357 100644
--- a/configs/topic_miamilite_defconfig
+++ b/configs/topic_miamilite_defconfig
@@ -38,6 +38,7 @@
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SPL_DM_SEQ_ALIAS=y
 CONFIG_DFU_RAM=y
+CONFIG_SYS_DFU_DATA_BUF_SIZE=0x600000
 CONFIG_FPGA_XILINX=y
 CONFIG_FPGA_ZYNQPL=y
 CONFIG_DM_I2C=y