diff --git www/Makefile www/Makefile
index d5d528502b76..f0aaa99ee37c 100644
--- www/Makefile
+++ www/Makefile
@@ -2471,6 +2471,7 @@
     SUBDIR += xsp
     SUBDIR += yabb
     SUBDIR += yanopaste
+    SUBDIR += yarn
     SUBDIR += yaws
     SUBDIR += yii
     SUBDIR += yourls