diff --git a/tests/dobj/MetadataTest.cpp b/tests/dobj/MetadataTest.cpp
index d9cdcca..7e5936f 100644
--- a/tests/dobj/MetadataTest.cpp
+++ b/tests/dobj/MetadataTest.cpp
@@ -1,4 +1,5 @@
 #include <gtest/gtest.h>
+#include <thread>
 #include "Metadata.h"
 
 /**
diff --git a/tests/dobj/meson.build b/tests/dobj/meson.build
index a8964cd..7e2f19e 100644
--- a/tests/dobj/meson.build
+++ b/tests/dobj/meson.build
@@ -1,6 +1,8 @@
 # Test files for dobj
 test_sources = [
-    'MetadataTest.cpp'
+    'MetadataTest.cpp',
+    'DObjectTest.cpp',
+    'LockableDObjectTest.cpp'
 ]
 
 foreach test_file : test_sources