diff --git a/develop/sdk/examples.md b/develop/sdk/examples.md
index 97750fe1dd..f572545c59 100644
--- a/develop/sdk/examples.md
+++ b/develop/sdk/examples.md
@@ -41,7 +41,7 @@ package main
 
 import (
 	"os"
-
+	"io"
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/pkg/stdcopy"