diff --git a/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php b/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php
index 1e5c7f76d829b..d1fe4c570dc75 100644
--- a/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php
+++ b/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php
@@ -132,7 +132,7 @@ protected function validateOptionType(Option $option)
      */
     protected function validateOptionValue(Option $option)
     {
-        return $this->isInRange($option->getPriceType(), $this->priceTypes) && !$this->isNegative($option->getPrice());
+        return $this->isInRange($option->getPriceType(), $this->priceTypes);
     }
 
     /**
diff --git a/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php b/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php
index 7196a721f1d02..e557c8a377681 100755
--- a/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php
+++ b/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php
@@ -923,7 +923,7 @@ protected function getPriceFieldConfig($sortOrder)
                         'addbeforePool' => $this->productOptionsPrice->prefixesToOptionArray(),
                         'sortOrder' => $sortOrder,
                         'validation' => [
-                            'validate-zero-or-greater' => true
+                            'validate-number' => true
                         ],
                     ],
                 ],