diff --git a/src/libcharon/plugins/eap_peap/eap_peap_peer.c b/src/libcharon/plugins/eap_peap/eap_peap_peer.c
index a4a92c78e..6b6c2a9de 100644
--- a/src/libcharon/plugins/eap_peap/eap_peap_peer.c
+++ b/src/libcharon/plugins/eap_peap/eap_peap_peer.c
@@ -130,12 +130,12 @@ METHOD(tls_application_t, process, status_t,
 		if (received_vendor)
 		{
 			DBG1(DBG_IKE, "server requested vendor specific EAP method %d-%d "
-						  "(id: %u)", received_type, received_vendor,
+						  "(id 0x%02X", received_type, received_vendor,
 						   in->get_identifier(in));
 		}
 		else
 		{
-			DBG1(DBG_IKE, "server requested %N authentication (id: %u)",
+			DBG1(DBG_IKE, "server requested %N authentication (id 0x%02X)",
 				 eap_type_names, received_type, in->get_identifier(in));
 		}
 		this->ph2_method = charon->eap->create_instance(charon->eap,
diff --git a/src/libcharon/plugins/eap_ttls/eap_ttls_peer.c b/src/libcharon/plugins/eap_ttls/eap_ttls_peer.c
index 0ee6beaf9..f7f676dc8 100644
--- a/src/libcharon/plugins/eap_ttls/eap_ttls_peer.c
+++ b/src/libcharon/plugins/eap_ttls/eap_ttls_peer.c
@@ -168,12 +168,12 @@ METHOD(tls_application_t, process, status_t,
 		if (received_vendor)
 		{
 			DBG1(DBG_IKE, "server requested vendor specific EAP method %d-%d "
-						  "(id: %u)", received_type, received_vendor,
+						  "(id 0x%02X)", received_type, received_vendor,
 						   in->get_identifier(in));
 		}
 		else
 		{
-			DBG1(DBG_IKE, "server requested %N authentication (id: %u)",
+			DBG1(DBG_IKE, "server requested %N authentication (id 0x%02X)",
 				 eap_type_names, received_type, in->get_identifier(in));
 		}
 		this->method = charon->eap->create_instance(charon->eap,
diff --git a/src/libcharon/sa/authenticators/eap_authenticator.c b/src/libcharon/sa/authenticators/eap_authenticator.c
index c39fe0517..6cae0034b 100644
--- a/src/libcharon/sa/authenticators/eap_authenticator.c
+++ b/src/libcharon/sa/authenticators/eap_authenticator.c
@@ -187,12 +187,12 @@ static eap_payload_t* server_initiate_eap(private_eap_authenticator_t *this,
 		{
 			if (vendor)
 			{
-				DBG1(DBG_IKE, "initiating EAP vendor type %d-%d method (id: %u)",
+				DBG1(DBG_IKE, "initiating EAP vendor type %d-%d method (id 0x%02X)",
 					 type, vendor, out->get_identifier(out));
 			}
 			else
 			{
-				DBG1(DBG_IKE, "initiating %N method (id: %u)", eap_type_names,
+				DBG1(DBG_IKE, "initiating %N method (id 0x%02X)", eap_type_names,
 					 type, out->get_identifier(out));
 			}
 			return out;
@@ -373,11 +373,11 @@ static eap_payload_t* client_process_eap(private_eap_authenticator_t *this,
 		if (vendor)
 		{
 			DBG1(DBG_IKE, "server requested vendor specific EAP method %d-%d ",
-				 		  "(id: %u)", type, vendor, in->get_identifier(in));
+				 		  "(id 0x%02X)", type, vendor, in->get_identifier(in));
 		}
 		else
 		{
-			DBG1(DBG_IKE, "server requested %N authentication (id: %u)",
+			DBG1(DBG_IKE, "server requested %N authentication (id 0x%02X)",
 				 eap_type_names, type, in->get_identifier(in));
 		}
 		this->method = load_method(this, type, vendor, EAP_PEER);