diff --git a/src/web/src/pages/engineering/LogViewer.vue b/src/web/src/pages/engineering/LogViewer.vue
index 0679c8f..757f752 100644
--- a/src/web/src/pages/engineering/LogViewer.vue
+++ b/src/web/src/pages/engineering/LogViewer.vue
@@ -33,8 +33,10 @@ function mounted() {
 // handle new log entry
 async function handleNewLogEntry( entry ) {
     entries.value.push(entry);
-    await nextTick();
-    viewer.value.scrollTop = viewer.value.scrollHeight;
+    if ( null !== viewer.value ) {
+        await nextTick();
+        viewer.value.scrollTop = viewer.value.scrollHeight;
+    }
 }
 
 // action clear