diff --git a/g10/tofu.c b/g10/tofu.c
index b78279e25..1bd8ce21b 100644
--- a/g10/tofu.c
+++ b/g10/tofu.c
@@ -1999,6 +1999,7 @@ build_conflict_set (tofu_dbs_t dbs, const char *fingerprint, const char *email)
     log_assert (conflict_set);
     log_assert (conflict_set_count >= 1);
   }
+  xfree (kb_all);
 
   if (DBG_TRUST)
     {