diff --git a/configure.ac b/configure.ac
index 9cd5ff5f3..1ddb1f4a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -925,6 +925,7 @@ AC_SUBST(CLIENT_VERSION_BUILD, _CLIENT_VERSION_BUILD)
 AC_SUBST(CLIENT_VERSION_IS_RELEASE, _CLIENT_VERSION_IS_RELEASE)
 AC_SUBST(COPYRIGHT_YEAR, _COPYRIGHT_YEAR)
 AC_SUBST(COPYRIGHT_HOLDERS, "_COPYRIGHT_HOLDERS")
+AC_SUBST(COPYRIGHT_HOLDERS_SUBSTITUTION, "_COPYRIGHT_HOLDERS_SUBSTITUTION")
 AC_SUBST(COPYRIGHT_HOLDERS_FINAL, "_COPYRIGHT_HOLDERS_FINAL")
 
 AC_SUBST(RELDFLAGS)