Index: man/meson.build
--- man/meson.build.orig
+++ man/meson.build
@@ -13,6 +13,6 @@ foreach rst_file : rst_files
     output: '@BASENAME@.1',
     command: [ rst2man_prog, '--strict', '@INPUT@', '@OUTPUT@'],
     install: true,
-    install_dir: datadir / 'man' / 'man1',
+    install_dir: prefix / 'man' / 'man1',
   )
 endforeach
