diff --git a/include/configs/ruby.h b/include/configs/ruby.h
index 1f049c4..acf90f0 100644
--- a/include/configs/ruby.h
+++ b/include/configs/ruby.h
@@ -115,6 +115,7 @@
 
 /* Default load address */
 #define CONFIG_SYS_LOAD_ADDR		RUBY_KERNEL_LOAD_DRAM_BEGIN	/* Default load address for bootm command */
+#define CONFIG_SYS_BOOTM_LEN		(32 * 1024 * 1024)
 
 /* Memory test */
 #define CONFIG_SYS_MEMTEST_START	CONFIG_ARC_FREE_BEGIN