diff --git a/include/build.py b/include/build.py
index 9c225a767..ec705419a 100644
--- a/include/build.py
+++ b/include/build.py
@@ -27,6 +27,7 @@ Import('env')
 base = './mapnik/'
 subdirs = [
     '',
+    'geometry',
     'csv',
     'svg',
     'wkt',