diff --git a/csi1/spiflash/spiflash_drv.c b/csi1/spiflash/spiflash_drv.c
index c0dfc80dd404c0a0a78b4d19a849b021b0540304..87170126cc9d980c9c09bb0a1901056a890d22fe 100755
--- a/csi1/spiflash/spiflash_drv.c
+++ b/csi1/spiflash/spiflash_drv.c
@@ -122,7 +122,7 @@ static int yoc_spiflash_erase(aos_dev_t *dev, int32_t addroff, int32_t sector_cn
     int i;
 
     /* check block erase support */
-    if (flash->info->block_size) {
+    if (flash->info->erased_value) {
         ret = yoc_spiflash_block_erase(dev, addroff, sector_cnt);
         return ret;
     }