diff --git a/packages/core/ui/styling/style-scope.ts b/packages/core/ui/styling/style-scope.ts
index ec0eb462a..9cbf5a051 100644
--- a/packages/core/ui/styling/style-scope.ts
+++ b/packages/core/ui/styling/style-scope.ts
@@ -552,7 +552,7 @@ export class CssState {
 		const newPropertyValues = new view.style.PropertyBag();
 		matchingSelectors.forEach((selector) => selector.ruleset.declarations.forEach((declaration) => (newPropertyValues[declaration.property] = declaration.value)));
 
-		const oldProperties = this._appliedPropertyValues || {};
+		const oldProperties = this._appliedPropertyValues;
 		// Update values for the scope's css-variables
 		view.style.resetScopedCssVariables();