diff --git a/discovery/file/file.go b/discovery/file/file.go
index c45595c6d..60b63350f 100644
--- a/discovery/file/file.go
+++ b/discovery/file/file.go
@@ -226,8 +226,8 @@ func (d *Discovery) watchFiles() {
 		panic("no watcher configured")
 	}
 	for _, p := range d.paths {
-		if idx := strings.LastIndex(p, "/"); idx > -1 {
-			p = p[:idx]
+		if dir, _ := filepath.Split(p); dir != "" {
+			p = dir
 		} else {
 			p = "./"
 		}