diff --git a/public/viewjs/mealplan.js b/public/viewjs/mealplan.js
index 8e2c08ea..7801973d 100644
--- a/public/viewjs/mealplan.js
+++ b/public/viewjs/mealplan.js
@@ -213,7 +213,7 @@ var calendar = $("#calendar").fullCalendar({
 					<h5> \
 						<a class="ml-1 btn btn-outline-danger btn-xs remove-product-button" href="#"><i class="fas fa-trash"></i></a> \
 						<a class="ml-1 btn btn-outline-success btn-xs product-consume-button ' + productConsumeButtonDisabledClasses + '" href="#" data-toggle="tooltip" title="' + __t("Consume %1$s of %2$s", parseFloat(mealPlanEntry.product_amount).toLocaleString() + ' ' + __n(mealPlanEntry.product_amount, productDetails.quantity_unit_purchase.name, productDetails.quantity_unit_purchase.name_plural), productDetails.product.name) + '" data-product-id="' + productDetails.product.id.toString() + '" data-product-name="' + productDetails.product.name + '" data-product-amount="' + mealPlanEntry.product_amount + '"><i class="fas fa-utensils"></i></a> \
-						<a class="ml-1 btn btn-outline-primary btn-xs show-as-dialog-link ' + productOrderMissingButtonDisabledClasses + '" href="' + U("/shoppinglistitem/new?embedded&updateexistingproduct&product=") + mealPlanEntry.product_id + '&amount="' + mealPlanEntry.product_amount + 'data-toggle="tooltip" title="' + __t("Add to shopping list") + '" data-product-id="' + productDetails.product.id.toString() + '" data-product-name="' + productDetails.product.name + '" data-product-amount="' + mealPlanEntry.product_amount + '"><i class="fas fa-cart-plus"></i></a> \
+						<a class="ml-1 btn btn-outline-primary btn-xs show-as-dialog-link ' + productOrderMissingButtonDisabledClasses + '" href="' + U("/shoppinglistitem/new?embedded&updateexistingproduct&product=") + mealPlanEntry.product_id + '&amount=' + mealPlanEntry.product_amount + '" data-toggle="tooltip" title="' + __t("Add to shopping list") + '" data-product-id="' + productDetails.product.id.toString() + '" data-product-name="' + productDetails.product.name + '" data-product-amount="' + mealPlanEntry.product_amount + '"><i class="fas fa-cart-plus"></i></a> \
 					</h5> \
 				</div>');
 
diff --git a/public/viewjs/shoppinglistitemform.js b/public/viewjs/shoppinglistitemform.js
index 8cbc2530..d7a5103e 100644
--- a/public/viewjs/shoppinglistitemform.js
+++ b/public/viewjs/shoppinglistitemform.js
@@ -188,3 +188,9 @@ if (GetUriParam("list") !== undefined)
 {
 	$("#shopping_list_id").val(GetUriParam("list"));
 }
+
+if (GetUriParam("amount") !== undefined)
+{
+	$("#amount").val(GetUriParam("amount"));
+	Grocy.FrontendHelpers.ValidateForm('shoppinglist-form');
+}