diff --git a/main.go b/main.go
index 3c4a58216..57d7f4282 100644
--- a/main.go
+++ b/main.go
@@ -147,6 +147,9 @@ func main() {
 				fatal(err)
 			}
 		}
+		if err := reviseRootDir(context); err != nil {
+			return err
+		}
 		return logs.ConfigureLogging(createLogConfig(context))
 	}
 
diff --git a/utils.go b/utils.go
index c687a4782..8b31be03f 100644
--- a/utils.go
+++ b/utils.go
@@ -92,6 +92,21 @@ func revisePidFile(context *cli.Context) error {
 	return context.Set("pid-file", pidFile)
 }
 
+// reviseRootDir convert the root to absolute path
+func reviseRootDir(context *cli.Context) error {
+	root := context.GlobalString("root")
+	if root == "" {
+		return nil
+	}
+
+	root, err := filepath.Abs(root)
+	if err != nil {
+		return err
+	}
+
+	return context.GlobalSet("root", root)
+}
+
 // parseBoolOrAuto returns (nil, nil) if s is empty or "auto"
 func parseBoolOrAuto(s string) (*bool, error) {
 	if s == "" || strings.ToLower(s) == "auto" {