diff --git a/client/README.md b/client/README.md
index 9106c89f8..672b8c13f 100644
--- a/client/README.md
+++ b/client/README.md
@@ -74,7 +74,7 @@ if err != nil {
 		// ctx is canceled by another routine
 	} else if err == context.DeadlineExceeded {
 		// ctx is attached with a deadline and it exceeded
-	} else if cerr, ok := err.(ClusterError); ok {
+	} else if cerr, ok := err.(*client.ClusterError); ok {
 		// process (cerr.Errors)
 	} else {
 		// bad cluster endpoints, which are not etcd servers