diff --git a/build-config/meson.build b/build-config/meson.build
index f4cc39f1..18e455bf 100644
--- a/build-config/meson.build
+++ b/build-config/meson.build
@@ -13,8 +13,8 @@ subdir('eigen')
 
 subdir('json')
 
-
 subdir('CLI11')
+subdir('unordered_dense')
 
 if get_option('use_mimalloc')
   subdir('mimalloc')
diff --git a/build-config/unordered_dense/meson.build b/build-config/unordered_dense/meson.build
index e69de29b..cd055293 100644
--- a/build-config/unordered_dense/meson.build
+++ b/build-config/unordered_dense/meson.build
@@ -0,0 +1,5 @@
+uod_sp = cmake.subproject(
+    'unordered_dense'
+)
+
+uod_dep = uod_sp.dependency('unordered_dense')
\ No newline at end of file