diff --git a/site/theme/template/Layout/Header.jsx b/site/theme/template/Layout/Header.jsx
index a88e4322a8..f63000ed71 100644
--- a/site/theme/template/Layout/Header.jsx
+++ b/site/theme/template/Layout/Header.jsx
@@ -148,6 +148,7 @@ export default class Header extends React.Component {
                 optionLabelProp="data-label"
                 filterOption={this.handleSelectFilter}
                 onSelect={this.handleSearch}
+                getPopupContainer={trigger => trigger.parentNode}
               >
                 {options}
               </Select>