diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 26571bafb158..80c0868d0480 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -163,6 +163,8 @@ static void acpi_pm_end(void)
 	acpi_target_sleep_state = ACPI_STATE_S0;
 	acpi_sleep_tts_switch(acpi_target_sleep_state);
 }
+#else /* !CONFIG_ACPI_SLEEP */
+#define acpi_target_sleep_state	ACPI_STATE_S0
 #endif /* CONFIG_ACPI_SLEEP */
 
 #ifdef CONFIG_SUSPEND