--- ceph-14.2.6/src/librbd/api/PoolMetadata.h.orig	2020-01-24 12:39:23.738816885 -0500
+++ ceph-14.2.6/src/librbd/api/PoolMetadata.h	2020-01-24 12:39:36.522902386 -0500
@@ -8,6 +8,7 @@
 #include "include/rados/librados_fwd.hpp"
 
 #include <map>
+#include <string>
 
 namespace librbd {