diff --git a/configs/bcm7445_defconfig b/configs/bcm7445_defconfig
index eecee5a..ce01797 100644
--- a/configs/bcm7445_defconfig
+++ b/configs/bcm7445_defconfig
@@ -21,6 +21,7 @@
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="U-Boot>"
 CONFIG_SYS_MAXARGS=32
+CONFIG_SYS_PBSIZE=536
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SF_TEST=y