diff --git a/apps/dav/lib/Migration/BuildCalendarSearchIndex.php b/apps/dav/lib/Migration/BuildCalendarSearchIndex.php
index da4b4f4fe840b..a7521433dcd3d 100644
--- a/apps/dav/lib/Migration/BuildCalendarSearchIndex.php
+++ b/apps/dav/lib/Migration/BuildCalendarSearchIndex.php
@@ -70,7 +70,7 @@ public function run(IOutput $output) {
 		}
 
 		$query = $this->db->getQueryBuilder();
-		$query->select($query->createFunction('MAX(id)'))
+		$query->select($query->createFunction('MAX(' . $query->getColumnName('id') . ')'))
 			->from('calendarobjects');
 		$maxId = (int)$query->execute()->fetchColumn();
 
@@ -83,4 +83,4 @@ public function run(IOutput $output) {
 		// if all were done, no need to redo the repair during next upgrade
 		$this->config->setAppValue('dav', 'buildCalendarSearchIndex', 'yes');
 	}
-}
\ No newline at end of file
+}