diff --git a/.gn b/.gn
index 901518d..947ebac 100644
--- a/.gn
+++ b/.gn
@@ -19,3 +19,4 @@
 # file, run "gn help dotfile" at the command line.
 
 buildconfig = "//build/config/BUILDCONFIG.gn"
+secondary_source = "//build/secondary/"