diff --git a/include/configs/rk3188_common.h b/include/configs/rk3188_common.h
index d4ffa04..1a0f28d 100644
--- a/include/configs/rk3188_common.h
+++ b/include/configs/rk3188_common.h
@@ -61,6 +61,7 @@
 /* Linux fails to load the fdt if it's loaded above 256M on a Rock board,
  * so limit the fdt reallocation to that */
 #define CONFIG_EXTRA_ENV_SETTINGS \
+	"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
 	"fdt_high=0x6fffffff\0" \
 	"initrd_high=0x6fffffff\0" \
 	"partitions=" PARTS_DEFAULT \