diff --git a/iscsi-scst/usr/message.c b/iscsi-scst/usr/message.c
index acd257153..a0f34f0f3 100644
--- a/iscsi-scst/usr/message.c
+++ b/iscsi-scst/usr/message.c
@@ -194,7 +194,7 @@ send:
 
 	err = writev(fd, iov, 2 + !!iov[2].iov_len);
 out:
-	if (fd > 0)
+	if (fd >= 0)
 		close(fd);
 	if (rsp_data)
 		free(rsp_data);