diff --git a/MANIFEST b/MANIFEST
index 8bac5b3bd..e3563c303 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -888,6 +888,7 @@ plugins/sudoers/starttime.c
 plugins/sudoers/strlcpy_unesc.c
 plugins/sudoers/strlist.c
 plugins/sudoers/strlist.h
+plugins/sudoers/strvec_join.c
 plugins/sudoers/stubs.c
 plugins/sudoers/sudo_ldap.h
 plugins/sudoers/sudo_ldap_conf.h