diff --git a/lib/lib80211/lib80211_regdomain.c b/lib/lib80211/lib80211_regdomain.c
--- a/lib/lib80211/lib80211_regdomain.c
+++ b/lib/lib80211/lib80211_regdomain.c
@@ -441,7 +441,7 @@
 	XML_ParserFree(mt->parser);
 
 	/* setup the identifer table */
-	rdp->ident = calloc(sizeof(struct ident), mt->nident + 1);
+	rdp->ident = calloc(mt->nident + 1, sizeof(struct ident));
 	if (rdp->ident == NULL)
 		return ENOMEM;
 	free(mt);