1 files changed, 4 insertions, 2 deletions

diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c
index a49081f40..b785d631d 100644
--- a/archival/libunarchive/get_header_tar.c
+++ b/archival/libunarchive/get_header_tar.c
@@ -152,9 +152,11 @@ char get_header_tar(archive_handle_t *archive_handle)
         if (!longname && parse_names) {
                 /* we trash mode[0] here, it's ok */
                 tar.name[sizeof(tar.name)] = '\0';
-                if (tar.prefix[0])
+                if (tar.prefix[0]) {
+                        /* and padding[0] */
+                        tar.prefix[sizeof(tar.prefix)] = '\0';
                         file_header->name = concat_path_file(tar.prefix, tar.name);
-                else
+                } else
                         file_header->name = xstrdup(tar.name);
         }