diff --git a/internal/dirlock/dirlock.go b/internal/dirlock/dirlock.go
index 0e7bd3844..b13944c43 100644
--- a/internal/dirlock/dirlock.go
+++ b/internal/dirlock/dirlock.go
@@ -1,4 +1,4 @@
-// +build !windows !illumos
+// +build !windows,!illumos
 
 package dirlock