diff --git a/automation/meson.build b/automation/meson.build
index ac3a2c85f..fff6b45c1 100644
--- a/automation/meson.build
+++ b/automation/meson.build
@@ -1,4 +1,4 @@
-automation_dir = join_paths(get_option('datadir'), 'aegisub', 'automation')
+automation_dir = get_option('datadir') / 'aegisub' / 'automation'
 
 install_data(
     'autoload/cleantags-autoload.lua',
@@ -8,13 +8,13 @@ install_data(
     'autoload/macro-2-mkfullwitdh.lua',
     'autoload/select-overlaps.moon',
     'autoload/strip-tags.lua',
-    install_dir: join_paths(automation_dir, 'autoload'))
+    install_dir: automation_dir / 'autoload')
 
 install_data(
     'demos/future-windy-blur.lua',
     'demos/raytracer.lua',
     'demos/raytracer-test1.ass',
-    install_dir: join_paths(automation_dir, 'demos'))
+    install_dir: automation_dir / 'demos')
 
 install_data(
     'include/cleantags.lua',
@@ -27,7 +27,7 @@ install_data(
     'include/unicode.lua',
     'include/utils-auto4.lua',
     'include/utils.lua',
-    install_dir: join_paths(automation_dir, 'include'))
+    install_dir: automation_dir / 'include')
 
 install_data(
     'include/aegisub/argcheck.moon',
@@ -37,4 +37,4 @@ install_data(
     'include/aegisub/re.moon',
     'include/aegisub/unicode.moon',
     'include/aegisub/util.moon',
-    install_dir: join_paths(automation_dir, 'include', 'aegisub'))
+    install_dir: automation_dir / 'include' / 'aegisub')
diff --git a/meson.build b/meson.build
index 139132c13..f87aa28a0 100644
--- a/meson.build
+++ b/meson.build
@@ -1,10 +1,10 @@
 project('Aegisub', ['c', 'cpp'], license: 'BSD-3-Clause',
-        meson_version: '>=0.47.0',
+        meson_version: '>=0.49.0',
         default_options: ['cpp_std=c++11', 'b_lto=true'])
 
 subdir('build')
 
-dataroot = join_paths(get_option('prefix'), get_option('datadir'), 'aegisub')
+dataroot = get_option('prefix') / get_option('datadir') / 'aegisub'
 add_project_arguments('-DP_DATA="@0@"'.format(dataroot), language: 'cpp')
 b_static = get_option('static')
 
diff --git a/packages/meson.build b/packages/meson.build
index 3be1d6301..799f4ff68 100644
--- a/packages/meson.build
+++ b/packages/meson.build
@@ -7,13 +7,13 @@ else
     configure_file(input: 'desktop/aegisub.desktop.template.in',
                    output: 'aegisub.desktop',
                    configuration: c_pkg,
-                   install_dir: join_paths(get_option('datadir'), 'applications'))
+                   install_dir: get_option('datadir') / 'applications')
 endif
 
 foreach s: ['16x16.png', '22x22.png', '24x24.png', '32x32.png',
              '48x48.png', '64x64.png', 'scalable.svg']
     dir = s.split('.')[0]
     ext = s.split('.')[1]
-    install_data(join_paths('desktop', dir, 'aegisub.' + ext),
-                 install_dir: join_paths(get_option('datadir'), 'icons', 'hicolor', dir, 'apps'))
+    install_data('desktop' / dir / 'aegisub.' + ext),
+                 install_dir: get_option('datadir') / 'icons' / 'hicolor' / dir / 'apps')
 endforeach