diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index bdbe94f30f0706fdaa9736405e9e05fb149d6b76..900322bad4f3be2ae5a5f2d9eb7d99daee4e53ca 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4120,7 +4120,7 @@ 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);