diff --git a/makefile b/makefile
--- a/makefile
+++ b/makefile
@@ -51,7 +51,11 @@ bin/node:
 
 bower: node_modules/bower/bin/bower bin/node
 	cd light9/web/lib; nodejs ../../../node_modules/bower/bin/bower install
+	# pixi is fetched with npm
+	ln -s ../../../node_modules/pixi.js light9/web/lib/
+
 	cd light9/web/lib/N3.js; npm install; PATH=../../../../bin:$(PATH) npm run browser
+
 	cd light9/web/lib/d3; PATH=../../../../bin:$(PATH) npm install
 
 bin/ascoltami2: gst_packages link_to_sys_packages