diff --git a/ext/ftp/ftp.c b/ext/ftp/ftp.c
index 5bb359b353a9..f2da6e5153fd 100644
--- a/ext/ftp/ftp.c
+++ b/ext/ftp/ftp.c
@@ -1931,6 +1931,12 @@ static void ftp_ssl_shutdown(ftpbuf_t *ftp, php_socket_t fd, SSL *ssl_handle) {
 					/* SSL wants a write. Really odd. Let's bail out. */
 					done = 1;
 					break;
+				case SSL_ERROR_SYSCALL:
+					/* most likely the peer closed the connection without
+					   sending a close_notify shutdown alert;
+					   bail out to avoid raising a spurious warning */
+					done = 1;
+					break;
 				default:
 					if ((sslerror = ERR_get_error())) {
 						ERR_error_string_n(sslerror, buf, sizeof(buf));