diff --git a/src/game.rs b/src/game.rs
index 52c49ed..5586a9a 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -600,6 +600,7 @@ fn handle_achievement_event(
 fn check_achievements(
     time: Res<Time>,
     q_player: Query<&Position, With<actor::PlayerCamera>>,
+    mut q_mirrorlight: Query<&mut Visibility, With<actor::MirrorLight>>,
     id2pos: Res<Id2Pos>,
     mut ew_achievement: EventWriter<AchievementEvent>,
     mut timer: ResMut<AchievementCheckTimer>,
@@ -633,6 +634,16 @@ fn check_achievements(
 
     if shadowed {
         ew_achievement.send(AchievementEvent::InJupitersShadow);
+        for mut mirrorlight_vis in &mut q_mirrorlight {
+            *mirrorlight_vis = Visibility::Hidden;
+        }
+    } else {
+        // This is checking for whether the player is shadowed, not the mirror.
+        // But in the case where these two are not the same, the player doesn't see
+        // the mirror anyway and the mirror light's visibility state is irrelevant.
+        for mut mirrorlight_vis in &mut q_mirrorlight {
+            *mirrorlight_vis = Visibility::Inherited;
+        }
     }
 }