diff --git a/tools/aapt2/Resource.h b/tools/aapt2/Resource.h
index cf93870..307c21d 100644
--- a/tools/aapt2/Resource.h
+++ b/tools/aapt2/Resource.h
@@ -57,6 +57,7 @@
   kInteger,
   kInterpolator,
   kLayout,
+  kMacro,
   kMenu,
   kMipmap,
   kNavigation,