diff --git a/lib/format_text/format-text.c b/lib/format_text/format-text.c
index e0b2786f2..29df5f116 100644
--- a/lib/format_text/format-text.c
+++ b/lib/format_text/format-text.c
@@ -1684,7 +1684,7 @@ static int _mda_export_text_raw(struct metadata_area *mda,
 	struct mda_context *mdc = (struct mda_context *) mda->metadata_locn;
 	char mdah[MDA_HEADER_SIZE]; /* temporary */
 
-	if (!mdc || !_raw_read_mda_header(mdah, &mdc->area))
+	if (!mdc || !_raw_read_mda_header((struct mda_header *)mdah, &mdc->area))
 		return 1; /* pretend the MDA does not exist */
 
 	return config_make_nodes(cft, parent, NULL,