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-rw-r--r--lib/smtp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/smtp.c b/lib/smtp.c
index 6cd8d0bf1..a3014be50 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -1457,7 +1457,7 @@ static CURLcode smtp_done(struct connectdata *conn, CURLcode status,
struct SMTP *smtp = data->state.proto.smtp;
struct pingpong *pp = &conn->proto.smtpc.pp;
const char *eob;
- size_t len;
+ ssize_t len;
ssize_t bytes_written;
(void)premature;