diff --git a/include/configs/ls1021aqds.h b/include/configs/ls1021aqds.h
index c90f531..f6efc55 100644
--- a/include/configs/ls1021aqds.h
+++ b/include/configs/ls1021aqds.h
@@ -665,5 +665,6 @@ unsigned long get_board_ddr_clk(void);
 #endif
 
 #include <asm/fsl_secure_boot.h>
+#define CONFIG_SYS_BOOTM_LEN	(64 << 20) /* Increase max gunzip size */
 
 #endif
diff --git a/include/configs/ls1021atwr.h b/include/configs/ls1021atwr.h
index f820de3..ae58646 100644
--- a/include/configs/ls1021atwr.h
+++ b/include/configs/ls1021atwr.h
@@ -523,5 +523,6 @@
 #endif
 
 #include <asm/fsl_secure_boot.h>
+#define CONFIG_SYS_BOOTM_LEN	(64 << 20) /* Increase max gunzip size */
 
 #endif