diff --git a/gio/tests/meson.build b/gio/tests/meson.build
index ebd04461f..e4b4959cb 100644
--- a/gio/tests/meson.build
+++ b/gio/tests/meson.build
@@ -428,6 +428,7 @@ if installed_tests_enabled
     'appinfo-test-static.desktop',
     'file.c',
     'org.gtk.test.dbusappinfo.desktop',
+    'test1.overlay',
     install_dir : installed_tests_execdir,
   )
   install_subdir('x-content', install_dir : installed_tests_execdir)