diff --git a/meson.build b/meson.build
index 7c9b1571..8a129f16 100644
--- a/meson.build
+++ b/meson.build
@@ -74,7 +74,7 @@ config_h.set_quoted('PACKAGE_VERSION', meson.project_version())
 config_h.set_quoted('PACKAGE_STRING', 'sysprof-' + meson.project_version())
 config_h.set_quoted('PACKAGE_BUGREPORT', 'https://gitlab.gnome.org/GNOME/sysprof/-/issues/new')
 config_h.set_quoted('PACKAGE_LIBEXECDIR', get_option('libexecdir'))
-config_h.set_quoted('PACKAGE_LIBDIR', get_option('libdir'))
+config_h.set_quoted('PACKAGE_LIBDIR', join_paths(get_option('prefix'), get_option('libdir')))
 config_h.set('PACKAGE_TARNAME', 'PACKAGE_STRING')
 config_h.set('PACKAGE', 'PACKAGE_NAME')
 config_h.set('VERSION', 'PACKAGE_VERSION')