diff --git a/registry/storage/driver/oss/doc.go b/registry/storage/driver/oss/doc.go
new file mode 100644
index 00000000..d1bc932f
--- /dev/null
+++ b/registry/storage/driver/oss/doc.go
@@ -0,0 +1,3 @@
+// Package oss implements the Aliyun OSS Storage driver backend. Support can be
+// enabled by including the "include_oss" build tag.
+package oss
diff --git a/registry/storage/driver/oss/oss.go b/registry/storage/driver/oss/oss.go
index 2303ebd0..cbda6d16 100644
--- a/registry/storage/driver/oss/oss.go
+++ b/registry/storage/driver/oss/oss.go
@@ -7,6 +7,8 @@
 // Because OSS is a key, value store the Stat call does not support last modification
 // time for directories (directories are an abstraction for key, value stores)
 //
+// +build include_oss
+
 package oss
 
 import (
diff --git a/registry/storage/driver/oss/oss_test.go b/registry/storage/driver/oss/oss_test.go
index 2749a3d0..56ec3208 100644
--- a/registry/storage/driver/oss/oss_test.go
+++ b/registry/storage/driver/oss/oss_test.go
@@ -1,3 +1,5 @@
+// +build include_oss
+
 package oss
 
 import (