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-rw-r--r--g10/build-packet.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/g10/build-packet.c b/g10/build-packet.c
index cbf037483..878481961 100644
--- a/g10/build-packet.c
+++ b/g10/build-packet.c
@@ -841,7 +841,8 @@ build_sig_subpkt_from_sig( PKT_signature *sig )
if(sig->expiredate>sig->timestamp)
u=sig->expiredate-sig->timestamp;
else
- u=0;
+ u=1; /* A 1-second expiration time is the shortest one
+ OpenPGP has */
buf[0] = (u >> 24) & 0xff;
buf[1] = (u >> 16) & 0xff;