diff --git a/mapnik.gyp b/mapnik.gyp
index d015f72..8e90cc9 100644
--- a/mapnik.gyp
+++ b/mapnik.gyp
@@ -28,6 +28,7 @@
     "common_includes": [
       "../include", # mapnik
       "../deps/", # mapnik/sparsehash
+      "../deps/mapbox/variant/include/"
       "../deps/agg/include/", # agg
       "../", # boost shim
       "<@(includes)/",