diff --git a/contrib/labstack/echo.v4/echotrace_test.go b/contrib/labstack/echo.v4/echotrace_test.go
index 7fb2757581..0dd3dab576 100644
--- a/contrib/labstack/echo.v4/echotrace_test.go
+++ b/contrib/labstack/echo.v4/echotrace_test.go
@@ -8,6 +8,7 @@ package echo
 import (
 	"errors"
 	"fmt"
+	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"strings"