diff --git a/src/public/stylesheets/style.css b/src/public/stylesheets/style.css
index 73592d2f4..dc1cfa22c 100644
--- a/src/public/stylesheets/style.css
+++ b/src/public/stylesheets/style.css
@@ -854,5 +854,5 @@ ul.fancytree-container li {
 
 /** ckeditor's autocomplete */
 .ck.ck-balloon-panel {
-    z-index: 10001;
+    z-index: 1001;
 }