diff --git a/src/composite.c b/src/composite.c
index e27221c59fb..17144f25cd4 100644
--- a/src/composite.c
+++ b/src/composite.c
@@ -808,3 +808,6 @@ the string.  */);
   defsubr (&Scompose_string_internal);
   defsubr (&Sfind_composition_internal);
 }
+
+/* arch-tag: 79cefaf8-ca48-4eed-97e5-d5afb290d272
+   (do not change this comment) */