diff --git a/spug_web/src/pages/home/AlarmTrend.js b/spug_web/src/pages/home/AlarmTrend.js
index 987a5ce..19d4a99 100644
--- a/spug_web/src/pages/home/AlarmTrend.js
+++ b/spug_web/src/pages/home/AlarmTrend.js
@@ -35,7 +35,7 @@ export default class AlarmTrend extends React.Component {
               type: "y"
             }}
           />
-          <Geom type="line" position="date*value" size={2}/>
+          <Geom type="line" position="date*value" size={2} shape={"smooth"}/>
           <Geom
             type="point"
             position="date*value"