diff --git a/src/components/NumberField/NumberField.js b/src/components/NumberField/NumberField.js
index 55177fef..38f5eaa1 100644
--- a/src/components/NumberField/NumberField.js
+++ b/src/components/NumberField/NumberField.js
@@ -139,7 +139,7 @@ const NumberField = React.forwardRef(function NumberField(props, ref) {
         disabled={disabled}
         type='number'
         ref={ref}
-        width='100%'
+        fullWidth
         onBlur={onBlur}
       />
       <StyledButtonWrapper isFlat={variant === 'flat'}>
diff --git a/src/components/Tabs/Tabs.stories.js b/src/components/Tabs/Tabs.stories.js
index 7a631c8c..cd36ee58 100644
--- a/src/components/Tabs/Tabs.stories.js
+++ b/src/components/Tabs/Tabs.stories.js
@@ -79,12 +79,7 @@ class TabsDemo extends React.Component {
             <TabPanel value={0} activeTab={activeTab}>
               <Fieldset label='Order:'>
                 <div style={{ padding: '0.5em 0 0.5em 0' }}>Amount:</div>
-                <NumberField
-                  width='100%'
-                  min={0}
-                  value={0}
-                  onChange={() => null}
-                />
+                <NumberField width='100%' min={0} defaultValue={0} />
                 <Checkbox
                   style={{ marginTop: '1rem' }}
                   name='shipping'