diff --git a/src/supervisor.rs b/src/supervisor.rs
index 4855409..c68d238 100644
--- a/src/supervisor.rs
+++ b/src/supervisor.rs
@@ -229,6 +229,9 @@ fn spawn_warmup(
     shutdown: &Arc<AtomicBool>,
 ) {
     if config.warmup.rules.is_empty() || !config.warmup.auto {
+        // Clear stale warmup status when rules are removed or auto is disabled
+        let mut status = shared_status.write().unwrap();
+        status.warmup.clear();
         return;
     }