diff --git a/include/meson.build b/include/meson.build
index 358bc32..fc304f3 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -7,6 +7,7 @@
   'stdplus/handle/copyable.hpp',
   'stdplus/handle/managed.hpp',
   'stdplus/hash.hpp',
+  'stdplus/hash/tuple.hpp',
   'stdplus/pinned.hpp',
   'stdplus/raw.hpp',
   'stdplus/signal.hpp',