diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
index 9b6db04..3ada295 100644
--- a/include/configs/zynq-common.h
+++ b/include/configs/zynq-common.h
@@ -221,6 +221,9 @@
 #define CONFIG_FIT_SIGNATURE
 #define CONFIG_RSA
 
+/* Extend size of kernel image for uncompression */
+#define CONFIG_SYS_BOOTM_LEN	(20 * 1024 * 1024)
+
 /* Boot FreeBSD/vxWorks from an ELF image */
 #if defined(CONFIG_ZYNQ_BOOT_FREEBSD)
 # define CONFIG_API