diff --git a/tmk_core/common/avr/suspend.c b/tmk_core/common/avr/suspend.c
index 0e13eb6..ea8099d 100644
--- a/tmk_core/common/avr/suspend.c
+++ b/tmk_core/common/avr/suspend.c
@@ -70,6 +70,7 @@ static void power_down(uint8_t wdto)
     wdt_disable();
 }
 
+#ifdef SUSPEND_MODE_STANDBY
 static void standby(void)
 {
 #ifdef SLEEP_MODE_STANDBY
@@ -80,6 +81,7 @@ static void standby(void)
     sleep_disable();
 #endif
 }
+#endif
 
 static void idle(void)
 {