diff --git a/tip_calculator/lib/main.dart b/tip_calculator/lib/main.dart
index 968dea4..43588fa 100644
--- a/tip_calculator/lib/main.dart
+++ b/tip_calculator/lib/main.dart
@@ -49,7 +49,7 @@ class TipCalculator extends StatelessWidget {
                   "Total: \$$total"));
 
           // Show dialog
-          showDialog(context: context, child: dialog);
+          showDialog(context: context, builder: (BuildContext context) => dialog);
         });
 
     Container container = new Container(
diff --git a/using_alert_dialog/lib/main.dart b/using_alert_dialog/lib/main.dart
index 66f66cc..3c8ece8 100644
--- a/using_alert_dialog/lib/main.dart
+++ b/using_alert_dialog/lib/main.dart
@@ -32,7 +32,7 @@ class MyHomeState extends State<MyHome> {
                 // On press of the button
                 onPressed: () {
                   // Show dialog
-                  showDialog(context: context, child: dialog);
+                  showDialog(context: context, builder: (BuildContext context) => dialog);
                 }),
           ),
         ));