diff --git a/upload/source/module/misc/misc_patch.php b/upload/source/module/misc/misc_patch.php
index 0fa51674c9eb49c630571243cd0fc1b82205ec79..29d3ac98498ae865dac3669c6b9c69c1868da7e7 100644
--- a/upload/source/module/misc/misc_patch.php
+++ b/upload/source/module/misc/misc_patch.php
@@ -56,7 +56,7 @@ if($_GET['action'] == 'pluginnotice') {
 		$lastipConvert = process_ipnotice($lastipConvert);
 		$nowipConvert = process_ipnotice($nowipConvert);
 
-		if($lastipConvert != $nowipConvert && stripos($lastipConvert, $nowipConvert) == false && stripos($nowipConvert, $lastipConvert) == false) {
+		if($lastipConvert != $nowipConvert && stripos($lastipConvert, $nowipConvert) === false && stripos($nowipConvert, $lastipConvert) === false) {
 			$lang = lang('forum/misc');
 			include template('common/ipnotice');
 		}