diff --git a/include/configs/rcar-gen3-common.h b/include/configs/rcar-gen3-common.h
index bbaab80..da82e44 100644
--- a/include/configs/rcar-gen3-common.h
+++ b/include/configs/rcar-gen3-common.h
@@ -51,6 +51,7 @@
 #define CONFIG_SYS_MONITOR_LEN		(256 * 1024)
 #define CONFIG_SYS_MALLOC_LEN		(1 * 1024 * 1024)
 #define CONFIG_SYS_BOOTMAPSZ		(8 * 1024 * 1024)
+#define CONFIG_SYS_BOOTM_LEN		(64 << 20)
 
 /* ENV setting */
 #define CONFIG_ENV_OVERWRITE