diff --git a/packages/lib/src/components/results/ChartComponent.wc.svelte b/packages/lib/src/components/results/ChartComponent.wc.svelte
index fa7126f..98cef49 100644
--- a/packages/lib/src/components/results/ChartComponent.wc.svelte
+++ b/packages/lib/src/components/results/ChartComponent.wc.svelte
@@ -192,6 +192,11 @@
     ): ChartDataSets => {
         let dataSet: number[];
 
+        // This is bad. For some reason the passed value is a string not a array of strings. With this conversion it does work!
+        if (typeof backgroundColor == "string") {
+            backgroundColor = backgroundColor.split(",");
+        }
+
         if (perSite) {
             dataSet = chartLabels.map((label: string) => {
                 const site: Site | undefined = responseStore.get(label);