diff --git a/gsf/gsf-infile-msole.c b/gsf/gsf-infile-msole.c
index 41134c8..a368a77 100644
--- a/gsf/gsf-infile-msole.c
+++ b/gsf/gsf-infile-msole.c
@@ -642,20 +642,9 @@ static GsfInput *
 gsf_infile_msole_dup (GsfInput *src_input, GError **err)
 {
 	GsfInfileMSOle const *src = GSF_INFILE_MSOLE (src_input);
-	GsfInfileMSOle *dst = ole_dup (src, err);
+	GsfInfileMSOle *parent = GSF_INFILE_MSOLE (gsf_input_container (src_input));
 
-	if (dst == NULL)
-		return NULL;
-
-	if (src->bat.block != NULL) {
-		dst->bat.block = g_new (guint32, src->bat.num_blocks),
-		memcpy (dst->bat.block, src->bat.block,
-			sizeof (guint32) * src->bat.num_blocks);
-	}
-	dst->bat.num_blocks = src->bat.num_blocks;
-	dst->dirent = src->dirent;
-
-	return GSF_INPUT (dst);
+	return gsf_infile_msole_new_child(parent, src->dirent, err);
 }
 
 static guint8 const *