diff --git a/src/imap/ngx_imap_handler.c b/src/imap/ngx_imap_handler.c
index 26513940b..e3853062a 100644
--- a/src/imap/ngx_imap_handler.c
+++ b/src/imap/ngx_imap_handler.c
@@ -1024,6 +1024,7 @@ ngx_pop3_auth_state(ngx_event_t *rev)
             s->args.nelts = 0;
             s->buffer->pos = s->buffer->start;
             s->buffer->last = s->buffer->start;
+            s->state = 0;
 
             if (rev->timer_set) {
                 ngx_del_timer(rev);
@@ -1095,6 +1096,7 @@ ngx_pop3_auth_state(ngx_event_t *rev)
             s->args.nelts = 0;
             s->buffer->pos = s->buffer->start;
             s->buffer->last = s->buffer->start;
+            s->state = 0;
 
             if (rev->timer_set) {
                 ngx_del_timer(rev);
@@ -1154,6 +1156,7 @@ ngx_pop3_auth_state(ngx_event_t *rev)
             s->args.nelts = 0;
             s->buffer->pos = s->buffer->start;
             s->buffer->last = s->buffer->start;
+            s->state = 0;
 
             if (rev->timer_set) {
                 ngx_del_timer(rev);