diff --git a/plugins/libkolab/skins/elastic/include/kolab_files.less b/plugins/libkolab/skins/elastic/include/kolab_files.less
index afa0c346..401c1823 100644
--- a/plugins/libkolab/skins/elastic/include/kolab_files.less
+++ b/plugins/libkolab/skins/elastic/include/kolab_files.less
@@ -109,6 +109,11 @@ a.button.saveas:before {
     position: relative;
 }
 
+#filesuploadform {
+    // force upload form position, otherwise it breaks layout
+    position: absolute !important;
+}
+
 #filelistbox {
     height: 100%;