diff --git a/2015/gogo.slide b/2015/gogo.slide
index 2670fd6..5fea198 100644
--- a/2015/gogo.slide
+++ b/2015/gogo.slide
@@ -175,8 +175,8 @@
 - removes gotos
 - removes unused labels, needless indirections, etc.
 - moves `var` declarations nearer to first use
-		
-.link rsc.io/grind
+
+.link http://rsc.io/grind
 
 * Performance problems