diff --git a/clients.php b/clients.php
index 10bc9ef6..f41ff650 100644
--- a/clients.php
+++ b/clients.php
@@ -46,6 +46,12 @@ if(isset($_GET['order'])){
   $order_display = "ASC";
 }
 
+if (empty($_GET['canned_date'])) {
+    //Prevents lots of undefined variable errors.
+    // $dtf and $dtt will be set by the below else to 0000-00-00 / 9999-00-00
+    $_GET['canned_date'] = 'custom';
+}
+
 //Date Filter
 if($_GET['canned_date'] == "custom" AND !empty($_GET['date_from'])){
   $date_from = mysqli_real_escape_string($mysqli,$_GET['date_from']);