diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 6f8112edd..a1c737112 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -11,6 +11,7 @@
     tools:context="com.example.android.android_me.MainActivity">
 
     <TextView
+        android:id="@+id/textview"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Hello World!" />