diff --git a/gn/gm.gni b/gn/gm.gni
index 38e50b5..409376c 100644
--- a/gn/gm.gni
+++ b/gn/gm.gni
@@ -36,6 +36,7 @@
   "$_gm/bitmaprect.cpp",
   "$_gm/bitmaprecttest.cpp",
   "$_gm/bitmapshader.cpp",
+  "$_gm/bitmaptiled.cpp",
   "$_gm/bleed.cpp",
   "$_gm/blend.cpp",
   "$_gm/blurcircles.cpp",