diff --git a/src/meson.build b/src/meson.build
index 7c4dabf..c4662ad 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -47,6 +47,7 @@
   'flags.cpp',
   'handle/copyable.cpp',
   'handle/managed.cpp',
+  'hash.cpp',
   'pinned.cpp',
   'raw.cpp',
   'signal.cpp',