diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index b3caa3b9722d..7f107be34423 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4112,7 +4112,7 @@ static void validate_options(void)
  */
 static int __init st_setup(char *str)
 {
-	int i, len, ints[5];
+	int i, len, ints[ARRAY_SIZE(parms) + 1];
 	char *stp;
 
 	stp = get_options(str, ARRAY_SIZE(ints), ints);