diff --git a/src/actions/inflight-monitor.ts b/src/actions/inflight-monitor.ts
index 61fd1b0..e8443e2 100644
--- a/src/actions/inflight-monitor.ts
+++ b/src/actions/inflight-monitor.ts
@@ -76,9 +76,11 @@ export class InflightMonitor extends SingletonAction<InflightSettings> {
     runtime.ensureConnections(cfgFromSettings(state.settings));
     state.unwatchStats?.();
     state.unwatchStats = undefined;
+    if (state.sampler) clearInterval(state.sampler);
+    state.sampler = undefined;
     if (this.displayOf(state) === "usage") {
       state.unwatchStats = runtime.watchStats(this.modelKeyOf(state));
-    } else if (!state.sampler) {
+    } else {
       state.sampler = setInterval(() => this.sample(state), 1000);
     }
     this.render(state);