diff --git a/vendor/manifest b/vendor/manifest
index 16e8f03f78fedf2465661734dd65749cfd974b52..22c63c01cbf61f9142a7eb1de6f075f66d89aec6 100644
--- a/vendor/manifest
+++ b/vendor/manifest
@@ -71,6 +71,13 @@
 			"branch": "master",
 			"path": "/tiff"
 		},
+		{
+			"importpath": "golang.org/x/sys/unix",
+			"repository": "https://go.googlesource.com/sys",
+			"revision": "1e2299c37cc91a509f1b12369872d27be0ce98a6",
+			"branch": "master",
+			"path": "/unix"
+		},
 		{
 			"importpath": "golang.org/x/sys/windows",
 			"repository": "https://go.googlesource.com/sys",