1 files changed, 1 insertions, 1 deletions

diff --git a/archival/tar.c b/archival/tar.c
index 79c3595ac..ba7cb0f8c 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -851,7 +851,7 @@ int tar_main(int argc, char **argv)
                         flags = O_RDONLY;
                 }
 
-                if (tar_filename[0] == '-' && !tar_filename[1]) {
+                if (LONE_DASH(tar_filename)) {
                         tar_handle->src_fd = fileno(tar_stream);
                         tar_handle->seek = seek_by_read;
                 } else {