diff --git a/thin-provisioning/thin_pool.cc b/thin-provisioning/thin_pool.cc
index 5bfb487..d9d9684 100644
--- a/thin-provisioning/thin_pool.cc
+++ b/thin-provisioning/thin_pool.cc
@@ -279,6 +279,12 @@ thin_pool::open_thin(thin_dev_t dev)
 	return open_device(dev);
 }
 
+void
+thin_pool::close_thin(thin::ptr td)
+{
+	close_device(td);
+}
+
 bool
 thin_pool::device_exists(thin_dev_t dev) const
 {
diff --git a/thin-provisioning/thin_pool.h b/thin-provisioning/thin_pool.h
index ce6e18e..4dffc7b 100644
--- a/thin-provisioning/thin_pool.h
+++ b/thin-provisioning/thin_pool.h
@@ -94,6 +94,7 @@ namespace thin_provisioning {
 		uint32_t get_time() const;
 
 		thin::ptr open_thin(thin_dev_t);
+		void close_thin(thin::ptr td);
 
 	private:
 		friend class thin;