1 files changed, 3 insertions, 0 deletions
diff --git a/utils.go b/utils.go
index 9fa6472..81d2e17 100644
--- a/utils.go
+++ b/utils.go
@@ -23,11 +23,14 @@ package main
 import (
 	"crypto/rand"
 	"encoding/base64"
+	"errors"
 	"fmt"
 	"log"
 	"net/http"
 )
 
+var errUnexpectedRace = errors.New("unexpected race condition")
+
 /*
  * Write a string to a http.ResponseWriter, setting the Content-Type and status
  * code.