diff --git a/phpgwapi/inc/class.egw_framework.inc.php b/phpgwapi/inc/class.egw_framework.inc.php
index 5c02f74a7a..6cfc1342d4 100644
--- a/phpgwapi/inc/class.egw_framework.inc.php
+++ b/phpgwapi/inc/class.egw_framework.inc.php
@@ -852,7 +852,7 @@ abstract class egw_framework
 		foreach($extra as $name => $value)
 		{
 			if (is_array($value)) $value = json_encode($value);
-			$java_script .= ' data-'.$name."='".str_replace("'", '\\\'', $value)."'";
+			$java_script .= ' data-'.$name."=\"". html::htmlspecialchars($value)."\"";
 		}
 		$java_script .= "></script>\n";