diff --git a/google.visualization/google.visualization-tests.ts b/google.visualization/google.visualization-tests.ts
index a5b1352dee..3453e2124c 100644
--- a/google.visualization/google.visualization-tests.ts
+++ b/google.visualization/google.visualization-tests.ts
@@ -488,3 +488,25 @@ function test_formatter_PatternFormat() {
 
     table.draw(view, { allowHtml: true, showRowNumber: true, width: '100%', height: '100%' });
 }
+
+function test_ChartsLoad() {
+    google.charts.load('current', {packages: ['corechart', 'table', 'sankey']});
+
+    function drawChart() {
+        // Define the chart to be drawn.
+        var data = new google.visualization.DataTable();
+        data.addColumn('string', 'Element');
+        data.addColumn('number', 'Percentage');
+        data.addRows([
+            ['Nitrogen', 0.78],
+            ['Oxygen', 0.21],
+            ['Other', 0.01]
+        ]);
+
+        // Instantiate and draw the chart.
+        var chart = new google.visualization.PieChart(document.getElementById('myPieChart'));
+        chart.draw(data, null);
+    }
+
+    google.charts.setOnLoadCallback(drawChart);
+}
diff --git a/google.visualization/google.visualization.d.ts b/google.visualization/google.visualization.d.ts
index a2a4bf21aa..e66054b479 100644
--- a/google.visualization/google.visualization.d.ts
+++ b/google.visualization/google.visualization.d.ts
@@ -9,6 +9,12 @@ declare namespace google {
     function setOnLoadCallback(handler: Function): void;
     function setOnLoadCallback(handler: () => void): void;
 
+    // https://developers.google.com/chart/interactive/docs/basic_load_libs
+    namespace charts {
+        function load(version: string, packages: Object): void;
+        function setOnLoadCallback(handler: Function): void;
+    }
+
     //https://developers.google.com/chart/interactive/docs/reference
     namespace visualization {