diff --git a/apps/sample/sample.pro b/apps/sample/sample.pro
index f1cde434..2aed0730 100644
--- a/apps/sample/sample.pro
+++ b/apps/sample/sample.pro
@@ -12,7 +12,8 @@ SUBDIRS       = trimesh_base \
                 trimesh_join \
                 trimesh_optional \
                 trimesh_intersection \
-                aabb_binary_tree
+                aabb_binary_tree \
+                edgemesh_grid
                 
 
 sources.files = *.pro