diff --git a/.changeset/silent-facts-tan.md b/.changeset/silent-facts-tan.md
new file mode 100644
index 0000000..d759029
--- /dev/null
+++ b/.changeset/silent-facts-tan.md
@@ -0,0 +1,5 @@
+---
+"@stackla/widget-utils": patch
+---
+
+Fixup minor bug where config was not being mutated correctly
diff --git a/src/widget-loader.ts b/src/widget-loader.ts
index d4dfff7..609cd6a 100644
--- a/src/widget-loader.ts
+++ b/src/widget-loader.ts
@@ -187,8 +187,8 @@ export function loadWidget(sdk: ISdk, settings?: MyWidgetSettings) {
   const settingsWithDefaults = mergeSettingsWithDefaults(settings)
 
   if (sdk.getExpandedTileVariant() === "vertical") {
-    loadVerticalExpandedTilesConfig(settings)
-    sdk.querySelector("expanded-tiles")?.setAttribute("data-variant", "vertical")
+    loadVerticalExpandedTilesConfig(settingsWithDefaults)
+    sdk.querySelector("expanded-tiles")?.setAttribute("variation", "vertical")
   }
 
   sdk.storeWidgetTemplateSettings(settingsWithDefaults)