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-rw-r--r--include/calendar_base.class.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/calendar_base.class.php b/include/calendar_base.class.php
index a0b90ba05..079da2621 100644
--- a/include/calendar_base.class.php
+++ b/include/calendar_base.class.php
@@ -268,7 +268,7 @@ $this->get_date_where($level).'
$prev = $next =null;
if ( empty($page['chronology_date']) )
return;
- $query = 'SELECT CONCAT_WS("-"';
+ $query = 'SELECT CONCAT_WS(\'-\'';
for ($i=0; $i<count($page['chronology_date']); $i++)
{
if ( 'any' === $page['chronology_date'][$i] )