diff --git a/Makefile b/Makefile
index 657915e1e..788eef43e 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,7 @@ all: \
 	js/lib/d3.keybinding.js \
 	js/lib/d3.one.js \
 	js/lib/d3.size.js \
+	js/lib/d3.tail.js \
 	js/lib/d3.trigger.js \
 	js/lib/d3.typeahead.js \
 	js/lib/jxon.js \