diff --git a/include/meson.build b/include/meson.build
index 979478e..56f9c8e 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -13,6 +13,7 @@
   'stdplus/net/addr/ip.hpp',
   'stdplus/net/addr/subnet.hpp',
   'stdplus/numeric/endian.hpp',
+  'stdplus/numeric/str.hpp',
   'stdplus/pinned.hpp',
   'stdplus/raw.hpp',
   'stdplus/signal.hpp',