diff --git a/data/config/meson.build b/data/config/meson.build
index a187df8..3b7d8e5 100644
--- a/data/config/meson.build
+++ b/data/config/meson.build
@@ -1,4 +1,4 @@
 install_data(
   'toolbox.conf',
-  install_dir: join_paths(get_option('sysconfdir'), 'containers'),
+  install_dir: get_option('sysconfdir') / 'containers',
 )
diff --git a/doc/meson.build b/doc/meson.build
index 53163c6..f5b3666 100644
--- a/doc/meson.build
+++ b/doc/meson.build
@@ -32,7 +32,7 @@ foreach section, pages: manuals
       command: go_md2man_command,
       input: input,
       install: true,
-      install_dir: join_paths(get_option('mandir'), sectiondir),
+      install_dir: get_option('mandir') / sectiondir,
       output: output,
     )
   endforeach
diff --git a/meson.build b/meson.build
index 2ecf0a0..b15480c 100644
--- a/meson.build
+++ b/meson.build
@@ -63,7 +63,7 @@ endif
 
 install_subdir(
   'test',
-  install_dir: join_paths(get_option('datadir'), meson.project_name()),
+  install_dir: get_option('datadir') / meson.project_name(),
   exclude_files: [
     'system/libs/bats-assert/.git',
     'system/libs/bats-assert/.gitignore',