diff --git a/bikeshop_project/assets/js/bikes/components/Source/index.jsx b/bikeshop_project/assets/js/bikes/components/Source/index.jsx
index 84b962d..7a51baa 100644
--- a/bikeshop_project/assets/js/bikes/components/Source/index.jsx
+++ b/bikeshop_project/assets/js/bikes/components/Source/index.jsx
@@ -28,7 +28,7 @@ const Source = ({ source, onChange }) => {
         floatingLabelText="Donation source"
         value={source}
         onChange={onChange}
-        autoWidth
+        fullWidth
       >
         {items}
       </SelectField>