diff --git a/src/Facade/Requests/AbstractPropFindWebDAVRequest.php b/src/Facade/Requests/AbstractPropFindWebDAVRequest.php
index 016c041..5d3fd19 100644
--- a/src/Facade/Requests/AbstractPropFindWebDAVRequest.php
+++ b/src/Facade/Requests/AbstractPropFindWebDAVRequest.php
@@ -31,13 +31,14 @@ public function getContent()
         $service = new Service();
 
         $service->namespaceMap = [
-            'DAV:'                          => 'D',
-            'urn:ietf:params:xml:ns:caldav' => 'C'
+            'DAV:'                           => 'D',
+            'urn:ietf:params:xml:ns:caldav'  => 'C',
+            'http://calendarserver.org/ns/'  => 'CS',
         ];
 
         $elements = [];
         foreach( $this->properties as $val ) {
-            $elements[] = [  $val => ""];
+            $elements[] = [  $val => "" ];
         }
         return $service->write('{DAV:}propfind',
             [
diff --git a/src/Facade/Requests/GetCalendarRequest.php b/src/Facade/Requests/GetCalendarRequest.php
index b2b084c..2bc7640 100644
--- a/src/Facade/Requests/GetCalendarRequest.php
+++ b/src/Facade/Requests/GetCalendarRequest.php
@@ -29,7 +29,7 @@ public function __construct(){
             '{DAV:}resourcetype',
             '{DAV:}sync-token',
             '{DAV:}getetag',
-            '{http://calendarserver.org/ns/:}getctag',
+            '{http://calendarserver.org/ns/}getctag',
         ];
     }
 }
\ No newline at end of file
diff --git a/src/Facade/Requests/GetCalendarsRequest.php b/src/Facade/Requests/GetCalendarsRequest.php
index 7f88a9d..05d0039 100644
--- a/src/Facade/Requests/GetCalendarsRequest.php
+++ b/src/Facade/Requests/GetCalendarsRequest.php
@@ -21,7 +21,7 @@ public function __construct(){
         $this->properties = [
             '{DAV:}resourcetype',
             '{DAV:}displayname',
-            '{http://calendarserver.org/ns/:}getctag',
+            '{http://calendarserver.org/ns/}getctag',
             '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set',
         ];
     }