diff --git a/src/hb-meta.hh b/src/hb-meta.hh
index 8736eab69..3fea5d995 100644
--- a/src/hb-meta.hh
+++ b/src/hb-meta.hh
@@ -29,6 +29,7 @@
 
 #include "hb.hh"
 
+#include <memory>
 #include <type_traits>
 #include <utility>