diff --git a/frontend/src/scripts/elements/custom-background-filter.ts b/frontend/src/scripts/elements/custom-background-filter.ts
index ac2db4ac6..83420047c 100644
--- a/frontend/src/scripts/elements/custom-background-filter.ts
+++ b/frontend/src/scripts/elements/custom-background-filter.ts
@@ -127,6 +127,7 @@ $(".section.customBackgroundFilter  .save.button").click(() => {
 
 ConfigEvent.subscribe((eventKey, eventValue) => {
   if (eventKey === "customBackgroundFilter") {
+    ((eventValue as unknown) as any[]).map((ev) => parseFloat(ev));
     loadConfig((eventValue as unknown) as number[]);
     apply();
   }