diff --git a/src/board/system76/lemp9/board.c b/src/board/system76/lemp9/board.c
index 51707c7..2e4d5c3 100644
--- a/src/board/system76/lemp9/board.c
+++ b/src/board/system76/lemp9/board.c
@@ -2,9 +2,6 @@
 
 #include <board/board.h>
 #include <board/gpio.h>
-#include <board/power.h>
-
-extern uint8_t main_cycle;
 
 void board_init(void) {
     // Allow CPU to boot
@@ -25,13 +22,6 @@ void board_init(void) {
     gpio_set(&SWI_N, true);
 }
 
-void board_event(void) {
-    if (main_cycle == 0) {
-        if (power_state == POWER_STATE_S0 || power_state == POWER_STATE_S3 || power_state == POWER_STATE_DS3) {
-            // System is on
-        } else if (gpio_get(&ACIN_N)) {
-            // Power off VDD3 if system should be off
-            gpio_set(&XLP_OUT, 0);
-        }
-    }
-}
+void board_on_ac(bool ac) { /* Fix unused variable */ ac = ac; }
+
+void board_event(void) {}