diff --git a/src/more-infos/more-info-media_player.html b/src/more-infos/more-info-media_player.html
index c58e486443..f3a9a10fa5 100644
--- a/src/more-infos/more-info-media_player.html
+++ b/src/more-infos/more-info-media_player.html
@@ -92,7 +92,7 @@
       <div class='controls layout horizontal justified'
            hidden$='[[computeHideSelectSource(isOff, supportsSelectSource)]]'>
         <iron-icon class="source-input" icon="mdi:login-variant"></iron-icon>
-        <paper-dropdown-menu class="source-input" label-float label='Source'>
+        <paper-dropdown-menu class="flex source-input" label-float label='Source'>
           <paper-menu class="dropdown-content" selected="{{sourceIndex}}">
             <template is='dom-repeat' items='[[stateObj.attributes.source_list]]'>
               <paper-item>[[item]]</paper-item>