diff --git a/client/src/components/Graph.vue b/client/src/components/Graph.vue
index 5c50332..f16b02a 100644
--- a/client/src/components/Graph.vue
+++ b/client/src/components/Graph.vue
@@ -102,7 +102,7 @@ async function resolveDataAnomaly(range: TimeRange): Promise<{
     return {
       timeserie: [
         { target: target, datapoints: values, color: 'green' },
-        { target: "HSR", datapoints: hsr, color: 'red' }
+        { target: "HSR", datapoints: hsr, color: 'red', confidence: 100 }
       ],
       segments: segments,
     }
diff --git a/client/src/views/Home.vue b/client/src/views/Home.vue
index 433c220..fed850d 100644
--- a/client/src/views/Home.vue
+++ b/client/src/views/Home.vue
@@ -98,7 +98,7 @@ export default defineComponent({
     // Anomaly
     alphaChange(e) {
       let cfg = _.clone(this.analyticUnitConfig);
-      cfg.alpha = parseFloat(e.target.value);
+      cfg.alpha = _.clamp(parseFloat(e.target.value), 0, 1);
       this.$store.dispatch('patchConfig',  { Anomaly: cfg });
     },
     confidenceChange(e) {