diff --git a/caddyhttp/httpserver/context.go b/caddyhttp/httpserver/context.go
index 52a5b556f..bdc59c81a 100644
--- a/caddyhttp/httpserver/context.go
+++ b/caddyhttp/httpserver/context.go
@@ -2,9 +2,9 @@ package httpserver
 
 import (
 	"bytes"
+	"crypto/rand"
 	"fmt"
 	"io/ioutil"
-	"math/rand"
 	"net"
 	"net/http"
 	"net/url"