diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index ecac797..13cb8ff 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -3,6 +3,7 @@ X-editable changelog
 
 Version 1.4.6 wip
 ----------------------------
+[bug #279] fix jQuery UI tooltip z-index to be less than select2 dropdown (vitalets)
 [bug #276] support id() and text() functions of select2 (vitalets)
 
 
diff --git a/src/containers/editable-container.css b/src/containers/editable-container.css
index 5f36d6d..ccdf08f 100644
--- a/src/containers/editable-container.css
+++ b/src/containers/editable-container.css
@@ -17,4 +17,5 @@
 
 .editable-container.ui-widget {
    font-size: inherit;  /* jqueryui widget font 1.1em too big, overwrite it */
+   z-index: 9990; /* should be less than select2 dropdown z-index to close dropdown first when click */
 }
\ No newline at end of file