diff --git a/tools/rkcommon.c b/tools/rkcommon.c
index 4389622..18778aa 100644
--- a/tools/rkcommon.c
+++ b/tools/rkcommon.c
@@ -50,7 +50,7 @@
 {
 	struct header0_info *hdr;
 
-	if (file_size > RK_MAX_CODE1_SIZE)
+	if (file_size > CONFIG_ROCKCHIP_MAX_SPL_SIZE)
 		return -ENOSPC;
 
 	memset(buf,  '\0', RK_CODE1_OFFSET * RK_BLK_SIZE);