diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -10,6 +10,7 @@
 	# Subdirectories
 	"debian/"
 	"gitian/"
+	"gitian-builder/"
 	"gitian-descriptors/"
 	"qos/"
 	"seeds/"