diff --git a/program/js/app.js b/program/js/app.js
index 65e0bada8..2fbe31bb2 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -7121,7 +7121,9 @@ function rcube_webmail()
     }
 
     // disable drag-n-drop temporarily
-    this.subscription_list.draggable('destroy').droppable('destroy');
+    // some skins disable dragging in mobile mode, so we have to check if it is still draggable
+    if (this.subscription_list.is_draggable())
+      this.subscription_list.draggable('destroy').droppable('destroy');
 
     var row, n, tmp, tmp_name, rowid, collator, pos, p, parent = '',
       folders = [], list = [], slist = [],
diff --git a/program/js/treelist.js b/program/js/treelist.js
index d84cfaae8..1f932f304 100644
--- a/program/js/treelist.js
+++ b/program/js/treelist.js
@@ -89,6 +89,7 @@ function rcube_treelist_widget(node, p)
   this.intersects = intersects;
   this.droppable = droppable;
   this.draggable = draggable;
+  this.is_draggable = is_draggable;
   this.update = update_node;
   this.insert = insert;
   this.remove = remove;
@@ -1245,6 +1246,11 @@ function rcube_treelist_widget(node, p)
 
     return this;
   }
+
+  function is_draggable()
+  {
+    return !!ui_draggable;
+  }
 }
 
 // use event processing functions from Roundcube's rcube_event_engine