diff --git a/client/request.go b/client/request.go
index 813eac2c9e..f7aebdb2d2 100644
--- a/client/request.go
+++ b/client/request.go
@@ -242,10 +242,8 @@ func (cli *Client) addHeaders(req *http.Request, headers headers) *http.Request
 		req.Header.Set(k, v)
 	}
 
-	if headers != nil {
-		for k, v := range headers {
-			req.Header[k] = v
-		}
+	for k, v := range headers {
+		req.Header[k] = v
 	}
 	return req
 }