diff --git a/doc/articles/slices_usage_and_internals.html b/doc/articles/slices_usage_and_internals.html
index 7eb751b455..ebdca01503 100644
--- a/doc/articles/slices_usage_and_internals.html
+++ b/doc/articles/slices_usage_and_internals.html
@@ -25,7 +25,7 @@ the type <code>[4]int</code> represents an array of four integers. An array's
 size is fixed; its length is part of its type (<code>[4]int</code> and
 <code>[5]int</code> are distinct, incompatible types). Arrays can be indexed in
 the usual way, so the expression <code>s[n]</code> accesses the <i>n</i>th
-element:
+element, starting from zero.
 </p>
 
 <pre>