diff --git a/res/layout/main.xml b/res/layout/main.xml
index c7fadb1..2887507 100644
--- a/res/layout/main.xml
+++ b/res/layout/main.xml
@@ -5,7 +5,8 @@
     android:layout_height="match_parent" >
     <EditText
         android:id="@+id/edit_message"
-        android:layout_width="wrap_content"
+        android:layout_weight="1"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:hint="@string/edit_message" />
     <Button