diff --git a/lib/FronkDB/FronkDB.php b/lib/FronkDB/FronkDB.php
index 1ee61c59e..76ba98faa 100644
--- a/lib/FronkDB/FronkDB.php
+++ b/lib/FronkDB/FronkDB.php
@@ -95,6 +95,7 @@ class FronkDB {
             // check for errors
             if(!$this->result) {
                 $return = false;
+                $log_query = true;
                 $this->lastError = mysqli_error($this->link);
                 if($print_error) {
                     echo "Error in SQL-query:<br />\n" . $sql . "<br />\n" . $this->lastError . "<br />\n";