diff --git a/inc/iSchedule-POST.php b/inc/iSchedule-POST.php
index aab2c74f..cf7fe6b4 100644
--- a/inc/iSchedule-POST.php
+++ b/inc/iSchedule-POST.php
@@ -82,11 +82,16 @@ if ( $d->validateRequest ( ) ) {
     // TODO: add originator addressbook and existing event lookup as whitelist
   }
   $method =  $ical->GetPValue('METHOD');
+
   $content_type = explode ( ';', $_SERVER['CONTENT_TYPE'] );
   if ( $content_type[0] != 'text/calendar' )
     $reply->XMLResponse( 406, 'content must be text/calendar' );
+
   $content_parts = Array ();
   foreach ( $content_type as $v ) {
+    if ($v == 'text/calendar')
+      continue;
+
     list ( $a, $b ) = explode ( '=', trim ( $v ), 2 );
     $content_parts[strtolower($a)] = strtoupper($b);
   }