diff --git a/g10/keyedit.c b/g10/keyedit.c
index ffc0da7c4..4fba22412 100644
--- a/g10/keyedit.c
+++ b/g10/keyedit.c
@@ -4350,6 +4350,7 @@ menu_adduid (ctrl_t ctrl, kbnode_t pub_keyblock,
   pkt = xmalloc_clear (sizeof *pkt);
   pkt->pkttype = PKT_SIGNATURE;
   pkt->pkt.signature = copy_signature (NULL, sig);
+  free_seckey_enc (sig);
   if (pub_where)
     insert_kbnode (node, new_kbnode (pkt), 0);
   else