diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 85867120c8a9..756b7c862318 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4157,7 +4157,7 @@ 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);