diff --git a/impl/utils/visualizer/static/index.js b/impl/utils/visualizer/static/index.js
index f212af0..d26e959 100644
--- a/impl/utils/visualizer/static/index.js
+++ b/impl/utils/visualizer/static/index.js
@@ -146,9 +146,6 @@ function addHistory(packet) {
             || x === 'data_symbols') {
             continue;
         }
-        if (x === 'header_evm' || x === 'data_evm') {
-            continue;
-        };
         keys.push(x);
     }
     keys.sort();
@@ -164,7 +161,11 @@ function addHistory(packet) {
 
     let i = 0;
     for (const x of keys) {
-        chartHistory.data.datasets[i].data.push(packet[x]);
+        let data = packet[x];
+        if (data == -1e38 /* "NaN" */) {
+            data = undefined;
+        }
+        chartHistory.data.datasets[i].data.push(data);
         i++;
     }
     chartHistory.data.labels.push((new Date() - state.start)/1000);