diff --git a/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java b/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java
index 71e90444..1d52f5f3 100644
--- a/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java
+++ b/android/src/main/java/com/flutter_webview_plugin/FlutterWebviewPlugin.java
@@ -131,7 +131,7 @@ void openUrl(MethodCall call, MethodChannel.Result result) {
 
         if (webViewManager == null || webViewManager.closed == true) {
             Map<String, Object> arguments = (Map<String, Object>) call.arguments;
-            List<String> channelNames = new ArrayList();
+            List<String> channelNames = new ArrayList<String>();
             if (arguments.containsKey(JS_CHANNEL_NAMES_FIELD)) {
                 channelNames = (List<String>) arguments.get(JS_CHANNEL_NAMES_FIELD);
             }