diff --git a/src/hud.rs b/src/hud.rs
index 5e20d8a..29a42fc 100644
--- a/src/hud.rs
+++ b/src/hud.rs
@@ -703,7 +703,9 @@ fn update_dashboard(
             Dashboard::RotationStabiliser => !settings.rotation_stabilizer_active,
             Dashboard::CruiseControl => settings.cruise_control_active,
             Dashboard::Radioactivity => {
-                if let Some(pos_jupiter) = id2pos.0.get(cmd::ID_JUPITER) {
+                if settings.reactor_state == 2 {
+                    true
+                } else if let Some(pos_jupiter) = id2pos.0.get(cmd::ID_JUPITER) {
                     pos_jupiter.distance(pos.0) < 140_000_000.0
                 } else {
                     false