diff --git a/src/wps/wps_attr_build.c b/src/wps/wps_attr_build.c
index edcc18cb6..ac9bb1e23 100644
--- a/src/wps/wps_attr_build.c
+++ b/src/wps/wps_attr_build.c
@@ -417,3 +417,14 @@ struct wpabuf * wps_ie_encapsulate(struct wpabuf *data)
 
 	return ie;
 }
+
+
+int wps_build_mac_addr(struct wpabuf *msg, const u8 *addr)
+{
+	wpa_printf(MSG_DEBUG, "WPS:  * MAC Address (" MACSTR ")",
+		   MAC2STR(addr));
+	wpabuf_put_be16(msg, ATTR_MAC_ADDR);
+	wpabuf_put_be16(msg, ETH_ALEN);
+	wpabuf_put_data(msg, addr, ETH_ALEN);
+	return 0;
+}
diff --git a/src/wps/wps_enrollee.c b/src/wps/wps_enrollee.c
index 9c0cebb75..1af43c2d5 100644
--- a/src/wps/wps_enrollee.c
+++ b/src/wps/wps_enrollee.c
@@ -16,16 +16,6 @@
 #include "wps_dev_attr.h"
 
 
-static int wps_build_mac_addr(struct wps_data *wps, struct wpabuf *msg)
-{
-	wpa_printf(MSG_DEBUG, "WPS:  * MAC Address");
-	wpabuf_put_be16(msg, ATTR_MAC_ADDR);
-	wpabuf_put_be16(msg, ETH_ALEN);
-	wpabuf_put_data(msg, wps->mac_addr_e, ETH_ALEN);
-	return 0;
-}
-
-
 static int wps_build_wps_state(struct wps_data *wps, struct wpabuf *msg)
 {
 	u8 state;
@@ -149,7 +139,7 @@ static struct wpabuf * wps_build_m1(struct wps_data *wps)
 	if (wps_build_version(msg) ||
 	    wps_build_msg_type(msg, WPS_M1) ||
 	    wps_build_uuid_e(msg, wps->uuid_e) ||
-	    wps_build_mac_addr(wps, msg) ||
+	    wps_build_mac_addr(msg, wps->mac_addr_e) ||
 	    wps_build_enrollee_nonce(wps, msg) ||
 	    wps_build_public_key(wps, msg) ||
 	    wps_build_auth_type_flags(wps, msg) ||
diff --git a/src/wps/wps_i.h b/src/wps/wps_i.h
index 6efc3bfea..354df2824 100644
--- a/src/wps/wps_i.h
+++ b/src/wps/wps_i.h
@@ -169,6 +169,7 @@ int wps_build_oob_dev_pw(struct wpabuf *msg, u16 dev_pw_id,
 			 const struct wpabuf *pubkey, const u8 *dev_pw,
 			 size_t dev_pw_len);
 struct wpabuf * wps_ie_encapsulate(struct wpabuf *data);
+int wps_build_mac_addr(struct wpabuf *msg, const u8 *addr);
 
 /* wps_attr_process.c */
 int wps_process_authenticator(struct wps_data *wps, const u8 *authenticator,
diff --git a/src/wps/wps_registrar.c b/src/wps/wps_registrar.c
index a26b8ee99..b4f933502 100644
--- a/src/wps/wps_registrar.c
+++ b/src/wps/wps_registrar.c
@@ -1526,18 +1526,6 @@ static int wps_build_cred_network_key(struct wpabuf *msg,
 }
 
 
-static int wps_build_cred_mac_addr(struct wpabuf *msg,
-				   const struct wps_credential *cred)
-{
-	wpa_printf(MSG_DEBUG, "WPS:  * MAC Address (" MACSTR ")",
-		   MAC2STR(cred->mac_addr));
-	wpabuf_put_be16(msg, ATTR_MAC_ADDR);
-	wpabuf_put_be16(msg, ETH_ALEN);
-	wpabuf_put_data(msg, cred->mac_addr, ETH_ALEN);
-	return 0;
-}
-
-
 static int wps_build_credential(struct wpabuf *msg,
 				const struct wps_credential *cred)
 {
@@ -1546,7 +1534,7 @@ static int wps_build_credential(struct wpabuf *msg,
 	    wps_build_cred_auth_type(msg, cred) ||
 	    wps_build_cred_encr_type(msg, cred) ||
 	    wps_build_cred_network_key(msg, cred) ||
-	    wps_build_cred_mac_addr(msg, cred))
+	    wps_build_mac_addr(msg, cred->mac_addr))
 		return -1;
 	return 0;
 }