diff --git a/table_demo b/table_demo
index 2f3b779..b43589d 100755
--- a/table_demo
+++ b/table_demo
@@ -43,6 +43,9 @@ try {
    // set up some PDFlib options
    $pdf->set_option("errorpolicy=return");
    $pdf->set_option("stringformat=utf8");
+   // set up the license key; Linux x86_64
+   $pdf->set_option("license=L900202-010053-139026-P52782-GB5G52");
+
    // all paths in 'searchpath' need to be inside curly braces
    // multiple curly-braced paths in $searchpath need to be separated with
    // space characters