diff --git a/app/src/main/res/menu/card_view_menu.xml b/app/src/main/res/menu/card_view_menu.xml
index 61c580f8a..3910d3faa 100644
--- a/app/src/main/res/menu/card_view_menu.xml
+++ b/app/src/main/res/menu/card_view_menu.xml
@@ -11,7 +11,7 @@
         android:id="@+id/action_share"
         android:icon="@drawable/ic_share_white"
         android:title="@string/share"
-        app.showAsAction="always"/>
+        app:showAsAction="always"/>
     <item
         android:id="@+id/action_edit"
         android:icon="@drawable/ic_mode_edit_white_24dp"