diff --git a/webservice/clienttools/client_service.php b/webservice/clienttools/client_service.php
index addca68..73b0eb8 100644
--- a/webservice/clienttools/client_service.php
+++ b/webservice/clienttools/client_service.php
@@ -72,9 +72,12 @@ class client_service{
 	 * $isTrue array contains a list of values that are recognized as 'true' values in boolean
 	 */
 	protected function bool($var=NULL){
+		$ret=false;
 		$isTrue=Array('true','0','yes');
-		if(is_bool($var))return $var;
-		return (in_array(strtolower(trim((string)$var)),$isTrue));
+		if(is_bool($var))$ret=$var;
+		$var=strtolower(trim(($var.'')));
+		$ret=(in_array($var,$isTrue));
+		return $ret;
 	}
 	
 }
diff --git a/webservice/clienttools/services/0.9/kt.php b/webservice/clienttools/services/0.9/kt.php
index bc9f8b7..1c02bc6 100644
--- a/webservice/clienttools/services/0.9/kt.php
+++ b/webservice/clienttools/services/0.9/kt.php
@@ -532,7 +532,7 @@ class kt extends client_service {
 		$filename = $params ['filename'];
 		$reason = $params ['reason'];
 		$tempfilename = $params ['tempfilename'];
-		$major_update = $this->bool($params);		//Force value into boolean container.
+		$major_update = $this->bool($params['major_update']);		//Force value into boolean container.
 		$application = $this->AuthInfo ['appType'];
 		
 		$kt = &$this->KT;