diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/GroupsPriceCalculator.vue b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/GroupsPriceCalculator.vue
index 8506ed40..4a48646b 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/GroupsPriceCalculator.vue
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/GroupsPriceCalculator.vue
@@ -354,7 +354,7 @@ export default {
                 'tx_epproducts_ajax[groupsPriceInquiry][summary][shortTerm]': this.formatCurrency(this.priceShortTerm),
                 'tx_epproducts_ajax[groupsPriceInquiry][summary][options]': this.priceOptions,
                 'tx_epproducts_ajax[groupsPriceInquiry][summary][board]': this.formatCurrency(this.priceBoard),
-                'tx_epproducts_ajax[groupsPriceInquiry][summary][priceRunningCosts]': this.formatCurrency(this.priceRunningCosts),
+                'tx_epproducts_ajax[groupsPriceInquiry][summary][runningCosts]': this.formatCurrency(this.priceRunningCosts),
                 'tx_epproducts_ajax[groupsPriceInquiry][summary][total]': this.formatCurrency(this.priceTotal),
             })
             if (this.selectedBoard) {