diff --git a/src/p_enemy.c b/src/p_enemy.c
index 3b598fb8bc0fcd995146d4bdf80a75c145e6a074..d43942d885f95e509e57b8af7b8b852bf2c57ee4 100644
--- a/src/p_enemy.c
+++ b/src/p_enemy.c
@@ -86,6 +86,9 @@ void A_Scream(mobj_t *actor);
 void A_Pain(mobj_t *actor);
 void A_1upThinker(mobj_t *actor);
 void A_MonitorPop(mobj_t *actor);
+void A_GoldMonitorPop(mobj_t *actor);
+void A_GoldMonitorRestore(mobj_t *actor);
+void A_GoldMonitorSparkle(mobj_t *actor);
 void A_Explode(mobj_t *actor);
 void A_BossDeath(mobj_t *actor);
 void A_CustomPower(mobj_t *actor);