diff --git a/g10/trust.c b/g10/trust.c
index a89b0e5e8..f46aeeaeb 100644
--- a/g10/trust.c
+++ b/g10/trust.c
@@ -704,7 +704,7 @@ void
 clean_one_uid (kbnode_t keyblock, kbnode_t uidnode, int noisy, int self_only,
                int *uids_cleaned, int *sigs_cleaned)
 {
-  int dummy;
+  int dummy = 0;
 
   assert (keyblock->pkt->pkttype==PKT_PUBLIC_KEY);
   assert (uidnode->pkt->pkttype==PKT_USER_ID);