diff --git a/otherbackends/raw.c b/otherbackends/raw.c
index c9a32e05..c95db970 100644
--- a/otherbackends/raw.c
+++ b/otherbackends/raw.c
@@ -285,7 +285,8 @@ static void raw_special(Backend *be, SessionSpecialCode code, int arg)
 {
     Raw *raw = container_of(be, Raw, backend);
     if (code == SS_EOF && raw->s) {
-        sk_write_eof(raw->s);
+        if (!raw->sent_socket_eof)
+            sk_write_eof(raw->s);
         raw->sent_socket_eof= true;
         raw_check_close(raw);
     }