diff --git a/src/wps/wps.c b/src/wps/wps.c
index 498f11f..fbaf85a 100644
--- a/src/wps/wps.c
+++ b/src/wps/wps.c
@@ -355,16 +355,16 @@
 int wps_ap_priority_compar(const struct wpabuf *wps_a,
 			   const struct wpabuf *wps_b)
 {
-	struct wps_parse_attr attr_a, attr_b;
+	struct wps_parse_attr attr;
 	int sel_a, sel_b;
 
-	if (wps_a == NULL || wps_parse_msg(wps_a, &attr_a) < 0)
+	if (wps_a == NULL || wps_parse_msg(wps_a, &attr) < 0)
 		return 1;
-	if (wps_b == NULL || wps_parse_msg(wps_b, &attr_b) < 0)
-		return -1;
+	sel_a = attr.selected_registrar && *attr.selected_registrar != 0;
 
-	sel_a = attr_a.selected_registrar && *attr_a.selected_registrar != 0;
-	sel_b = attr_b.selected_registrar && *attr_b.selected_registrar != 0;
+	if (wps_b == NULL || wps_parse_msg(wps_b, &attr) < 0)
+		return -1;
+	sel_b = attr.selected_registrar && *attr.selected_registrar != 0;
 
 	if (sel_a && !sel_b)
 		return -1;