diff --git a/gen/com/ibm/ipzvpd/VSYS/meson.build b/gen/com/ibm/ipzvpd/VSYS/meson.build
index df7325c..875ff56 100644
--- a/gen/com/ibm/ipzvpd/VSYS/meson.build
+++ b/gen/com/ibm/ipzvpd/VSYS/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VSYS__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSYS.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSYS.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSYS',
     ],
 )