diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index 7085d42..61bf7e6 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -490,7 +490,7 @@
 
 	len_incl_bad = get_len_incl_bad (nand, offset, *length);
 
-	if ((offset + len_incl_bad) >= nand->size) {
+	if ((offset + len_incl_bad) > nand->size) {
 		printf ("Attempt to write outside the flash area\n");
 		return -EINVAL;
 	}
@@ -562,7 +562,7 @@
 
 	len_incl_bad = get_len_incl_bad (nand, offset, *length);
 
-	if ((offset + len_incl_bad) >= nand->size) {
+	if ((offset + len_incl_bad) > nand->size) {
 		printf ("Attempt to read outside the flash area\n");
 		return -EINVAL;
 	}