diff --git a/update_appindex.go b/update_appindex.go
index 1e75fa8..a28f485 100644
--- a/update_appindex.go
+++ b/update_appindex.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"log"
 	"os"
+	"regexp"
 	"runtime"
 	"strings"
 	"time"