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-rw-r--r--src/src/pdkim/pdkim.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/src/pdkim/pdkim.c b/src/src/pdkim/pdkim.c
index 3a6ca4e91..f68324097 100644
--- a/src/src/pdkim/pdkim.c
+++ b/src/src/pdkim/pdkim.c
@@ -1324,7 +1324,8 @@ check_bare_ed25519_pubkey(pdkim_pubkey * p)
int excess = p->key.len - 32;
if (excess > 0)
{
- DEBUG(D_acl) debug_printf("DKIM: unexpected pubkey len %lu\n", p->key.len);
+ DEBUG(D_acl)
+ debug_printf("DKIM: unexpected pubkey len %lu\n", (unsigned long) p->key.len);
p->key.data += excess; p->key.len = 32;
}
}