diff --git a/package.json b/package.json
index 7a1b683..b0f5089 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hhd-ui",
-  "version": "0.18.3",
+  "version": "0.18.4",
   "private": true,
   "dependencies": {
     "@ag-grid-community/client-side-row-model": "^30.0.3",
diff --git a/src/app-pages/project/batch-plotting/modals/components/PlotSymbology.jsx b/src/app-pages/project/batch-plotting/modals/components/PlotSymbology.jsx
index bf4fb17..14aed17 100644
--- a/src/app-pages/project/batch-plotting/modals/components/PlotSymbology.jsx
+++ b/src/app-pages/project/batch-plotting/modals/components/PlotSymbology.jsx
@@ -173,7 +173,7 @@ const PlotSymbology = ({
     const index = traces.findIndex(trace => trace.timeseries_id === selectedTs);
     const newTrace = {
       ...index !== -1 ? traces[index] : {},
-      color: settings.color,
+      color: settings.color || '#ffffff',
       show_markers: settings.markers,
       width: Number(settings.width),
       line_style: settings.dash,