diff --git a/api/src/Db/Backup.php b/api/src/Db/Backup.php
index 2b11370b9f..f88fad7b0f 100644
--- a/api/src/Db/Backup.php
+++ b/api/src/Db/Backup.php
@@ -567,7 +567,12 @@ class Backup
 					// do NOT create GUACAMOLE tables, just truncate them (as we have no abstraction to create the foreign keys)
 					if (preg_match(self::GUACAMOLE_REGEXP, $table_name))
 					{
-						$this->db->query('TRUNCATE TABLE '.$this->db->name_quote($table_name));
+						try {
+							$this->db->query('TRUNCATE TABLE '.$this->db->name_quote($table_name));
+						}
+						catch (Exception $e) {
+							echo "<p><b>Failed to TRUNCATE TABLE $table_name: ".$e->getMessage()."</b></p>\n";
+						}
 						continue;
 					}
 					// if column is longtext in current schema, convert text to longtext, in case user already updated column