diff --git a/src/systemd/meson.build b/src/systemd/meson.build
index b1f4d4e00b..a91d7064bb 100644
--- a/src/systemd/meson.build
+++ b/src/systemd/meson.build
@@ -79,6 +79,7 @@ if cxx_cmd != ''
                        '-std=c++17',
                        '-std=c++20',
                        '-std=c++23',
+                       '-std=c++26',
                       ]
                 if cxx.has_argument(opt)
                         opts += [['c++', opt]]