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-rw-r--r--smtp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/smtp.c b/smtp.c
index 14f1df6..87b086b 100644
--- a/smtp.c
+++ b/smtp.c
@@ -137,7 +137,7 @@ static const char * message_cb (void **buf, int *len, void *arg)
/* only allow rewinding in the beginning of a message otherwise
* it will break the pipes */
assert(*buf == NULL);
- return;
+ return NULL;
}
if (*buf == NULL)