diff --git a/doc/effective_go.html b/doc/effective_go.html
index 3f6f89b8bc..9ca5e7eb3b 100644
--- a/doc/effective_go.html
+++ b/doc/effective_go.html
@@ -2705,7 +2705,7 @@ func init() {
 
 <p>
 When <code>panic</code> is called, including implicitly for run-time
-errors such indexing an array out of bounds or failing a type
+errors such as indexing an array out of bounds or failing a type
 assertion, it immediately stops execution of the current function
 and begins unwinding the stack of the goroutine, running any deferred
 functions along the way.  If that unwinding reaches the top of the