diff --git a/conf/nginx.conf b/conf/nginx.conf
index 8447990..e424dc1 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,6 +1,6 @@
 location / {
     index index.html;
-    root __INSTALL_DIR/www/;
+    root __INSTALL_DIR__/www/;
 }
 
 location /webirc/ {