--- a/libfprint/tod/meson.build	2026-02-11 19:28:06.946827977 +0100
+++ b/libfprint/tod/meson.build	2026-02-11 19:30:55.395942914 +0100
@@ -18,7 +18,7 @@
 if meson.version().version_compare('>=1.4')
     mapfile_path = mapfile.full_path()
 else
-    mapfile_path = meson.project_source_root() / '@0@'.format(mapfile)
+    mapfile_path = meson.project_build_root() / '@0@'.format(mapfile)
 endif
 
 libfprint_tod_private = static_library('fprint-tod-private',