diff --git a/Civi/Core/SettingsBag.php b/Civi/Core/SettingsBag.php
index 9b415dcf433a..14289499244f 100644
--- a/Civi/Core/SettingsBag.php
+++ b/Civi/Core/SettingsBag.php
@@ -352,7 +352,7 @@ protected function setDb($name, $value) {
     }
     $dao->find(TRUE);
 
-    if (isset($metadata['on_change'])) {
+    if (isset($metadata['on_change']) && !($value == 0 && ($dao->value === NULL || unserialize($dao->value) == 0))) {
       foreach ($metadata['on_change'] as $callback) {
         call_user_func(
           \Civi\Core\Resolver::singleton()->get($callback),