Update Wear SDK tag reference in building doc (4.4W > 4.4W2).
diff --git a/doc/BUILDING.md b/doc/BUILDING.md
index 9eb567c..8f96633 100644
--- a/doc/BUILDING.md
+++ b/doc/BUILDING.md
@@ -49,7 +49,7 @@
- Tools > Android SDK Tools (rev 23.0.5 or above)
- Tools > Android SDK Build-tools version 20
- Tools > Android SDK Build-tools version 21 (rev 21.0.2 or above)
- - Android 4.4W > SDK Platform (API 20)
+ - Android 4.4W2 > SDK Platform (API 20)
- Android 5.0 > SDK Platform (API 21)
- Extras > Android Support Repository
- Extras > Android Support Library