Fix build break

Change-Id: I0f272975a5132b6278b686d41bf235cb1d0cd21f
diff --git a/res/layout/dialpad.xml b/res/layout/dialpad.xml
index d537e62..2b5644b 100644
--- a/res/layout/dialpad.xml
+++ b/res/layout/dialpad.xml
@@ -51,7 +51,7 @@
             <LinearLayout
                 style="@style/DialpadKeyInternalLayoutStyle">
                 <TextView
-                    android:id="@id/dialpad_key_number"
+                    android:id="@+id/dialpad_key_number"
                     style="@style/DialpadKeyStarPoundStyle" />
                 <View
                     android:layout_height="match_parent"