diff --git a/src/libipsec/esp_packet.c b/src/libipsec/esp_packet.c
index ebe13ce77..822302280 100644
--- a/src/libipsec/esp_packet.c
+++ b/src/libipsec/esp_packet.c
@@ -115,7 +115,7 @@ METHOD(packet_t, skip_bytes, void,
 	return this->packet->skip_bytes(this->packet, bytes);
 }
 
-METHOD(packet_t, clone, packet_t*,
+METHOD(packet_t, clone_, packet_t*,
 	private_esp_packet_t *this)
 {
 	private_esp_packet_t *pkt;
@@ -414,7 +414,7 @@ static private_esp_packet_t *esp_packet_create_internal(packet_t *packet)
 				.get_dscp = _get_dscp,
 				.set_dscp = _set_dscp,
 				.skip_bytes = _skip_bytes,
-				.clone = _clone,
+				.clone = _clone_,
 				.destroy = _destroy,
 			},
 			.get_source = _get_source,
diff --git a/src/libipsec/ip_packet.c b/src/libipsec/ip_packet.c
index ede9d100a..181cb88db 100644
--- a/src/libipsec/ip_packet.c
+++ b/src/libipsec/ip_packet.c
@@ -95,7 +95,7 @@ METHOD(ip_packet_t, get_next_header, u_int8_t,
 	return this->next_header;
 }
 
-METHOD(ip_packet_t, clone, ip_packet_t*,
+METHOD(ip_packet_t, clone_, ip_packet_t*,
 	private_ip_packet_t *this)
 {
 	return ip_packet_create(chunk_clone(this->packet));
@@ -183,7 +183,7 @@ ip_packet_t *ip_packet_create(chunk_t packet)
 			.get_destination = _get_destination,
 			.get_next_header = _get_next_header,
 			.get_encoding = _get_encoding,
-			.clone = _clone,
+			.clone = _clone_,
 			.destroy = _destroy,
 		},
 		.src = src,