diff --git a/src/bt_peer_connection.cpp b/src/bt_peer_connection.cpp
index 50204a665..9b9b390f2 100644
--- a/src/bt_peer_connection.cpp
+++ b/src/bt_peer_connection.cpp
@@ -121,7 +121,11 @@ namespace libtorrent
 #ifndef TORRENT_DISABLE_EXTENSIONS
 		, m_upload_only_id(0)
 		, m_holepunch_id(0)
+#endif
+#ifndef TORRENT_DISABLE_ENCRYPTION
 		, m_sync_bytes_read(0)
+#endif
+#ifndef TORRENT_DISABLE_EXTENSIONS
 		, m_dont_have_id(0)
 		, m_share_mode_id(0)
 #endif