1 files changed, 2 insertions, 2 deletions

diff --git a/archival/tar.c b/archival/tar.c
index 689dd1424..950e21dd3 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -234,9 +234,9 @@ static inline int writeTarHeader(struct TarBallInfo *tbInfo,
                         TAR_MAGIC_LEN + TAR_VERSION_LEN);
 
         /* Enter the user and group names (default to root if it fails) */
-        if (my_getpwuid(header.uname, statbuf->st_uid) == NULL)
+        if (my_getpwuid(header.uname, statbuf->st_uid, sizeof(header.uname)) == NULL)
                 strcpy(header.uname, "root");
-        if (my_getgrgid(header.gname, statbuf->st_gid) == NULL)
+        if (my_getgrgid(header.gname, statbuf->st_gid, sizeof(header.gname)) == NULL)
                 strcpy(header.gname, "root");
 
         if (tbInfo->hlInfo) {