diff --git a/apps/store/src/services/PriceCalculator/PriceCalculator.helpers.ts b/apps/store/src/services/PriceCalculator/PriceCalculator.helpers.ts
index 034455a5b1..c02e25a366 100644
--- a/apps/store/src/services/PriceCalculator/PriceCalculator.helpers.ts
+++ b/apps/store/src/services/PriceCalculator/PriceCalculator.helpers.ts
@@ -105,6 +105,7 @@ const calculateSectionState = (section: FormSection): FormSection => {
 export const deserializeField = (field: InputField, formData: FormData) => {
   switch (field.type) {
     case 'number':
+    case 'stepper':
       return parseNumber(field, formData)
 
     case 'pet-dog-breeds':