diff --git a/includes/commerce_sagepay_utils.inc b/includes/commerce_sagepay_utils.inc
index 05c4f07..47a3808 100644
--- a/includes/commerce_sagepay_utils.inc
+++ b/includes/commerce_sagepay_utils.inc
@@ -85,6 +85,7 @@
     $split_name = explode(' ', trim($name_line));

     $last_name = array_pop($split_name);
+    $first_name = '';
     foreach ($split_name as $n) {
       $first_name .= $n;
       $first_name .= ' ';