diff --git a/context.go b/context.go
index 2d5ec7a..f58d814 100644
--- a/context.go
+++ b/context.go
@@ -10,6 +10,7 @@ import (
 	"fmt"
 	"log"
 	"net"
+	"math"
 	"net/http"
 	"strings"