diff --git a/src/meson.build b/src/meson.build
index c4662ad..ed994ea 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -48,6 +48,7 @@
   'handle/copyable.cpp',
   'handle/managed.cpp',
   'hash.cpp',
+  'hash/tuple.cpp',
   'pinned.cpp',
   'raw.cpp',
   'signal.cpp',