diff --git a/acpi-handle-hack.c b/acpi-handle-hack.c
index 0986c90..cd2b6f6 100644
--- a/acpi-handle-hack.c
+++ b/acpi-handle-hack.c
@@ -20,8 +20,8 @@ static acpi_handle orig_handle;
  * Returns true if the system needs an ACPI handle hack
  */
 static bool __init need_acpi_handle_hack(void) {
-	return dmi_match(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y470") ||
-		dmi_match(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y570");
+	return dmi_match(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y470             ") ||
+		dmi_match(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Y570             ");
 }
 
 static struct pci_dev __init *get_discrete_device(void) {