diff --git a/scst/src/scst_targ.c b/scst/src/scst_targ.c
index c3aa798b0..bde560fa3 100644
--- a/scst/src/scst_targ.c
+++ b/scst/src/scst_targ.c
@@ -2249,7 +2249,7 @@ static int scst_report_supported_opcodes(struct scst_cmd *cmd)
 
 	switch (options) {
 	case 0: /* all */
-		put_unaligned_be32(buf_len - 3, &buf[0]);
+		put_unaligned_be32(buf_len - 4, &buf[0]);
 		offs = 4;
 		for (i = 0; i < supp_opcodes_cnt; i++) {
 			op = supp_opcodes[i];