diff --git a/samples/tooltips/custom-pie.html b/samples/tooltips/custom-pie.html
index 8350123b1..96da5f56b 100644
--- a/samples/tooltips/custom-pie.html
+++ b/samples/tooltips/custom-pie.html
@@ -43,7 +43,7 @@
 	</div>
 
 	<script>
-		Chart.default.tooltips.custom = function(tooltip) {
+		Chart.defaults.tooltips.custom = function(tooltip) {
 			// Tooltip Element
 			var tooltipEl = document.getElementById('chartjs-tooltip');