diff --git a/include/configs/sbc35_a9g20.h b/include/configs/sbc35_a9g20.h
index f4b3477..7a2dcd8 100644
--- a/include/configs/sbc35_a9g20.h
+++ b/include/configs/sbc35_a9g20.h
@@ -161,6 +161,7 @@
 #define CONFIG_ENV_OFFSET		0x60000
 #define CONFIG_ENV_OFFSET_REDUND	0x80000
 #define CONFIG_ENV_SIZE			0x20000
+#define CONFIG_SYS_64BIT_VSPRINTF	/* needed for nand_util.c */
 #endif
 
 #define CONFIG_BOOTCOMMAND	"nboot 0x21000000 0 400000"