diff --git a/rules/rules.go b/rules/rules.go
index 5fe2fb8a..d8a7f967 100644
--- a/rules/rules.go
+++ b/rules/rules.go
@@ -22,7 +22,7 @@ type Rule struct {
 // MatchHidden matches paths with a basename
 // that begins with a dot.
 func MatchHidden(path string) bool {
-	return filepath.Base(path)[0] == '.'
+	return strings.HasPrefix(filepath.Base(path), ".")
 }
 
 // Matches matches a path against a rule.