diff --git a/external/tox_ngc_ft1/tox_ngc_ft1 b/external/tox_ngc_ft1/tox_ngc_ft1
index 2a6dca6..08a083f 160000
--- a/external/tox_ngc_ft1/tox_ngc_ft1
+++ b/external/tox_ngc_ft1/tox_ngc_ft1
@@ -1 +1 @@
-Subproject commit 2a6dca69c79b95cd2593374bbdc1eccbeec24faa
+Subproject commit 08a083f346bbd06cebe4ba619b5130340a5d4c14
diff --git a/external/toxcore/CMakeLists.txt b/external/toxcore/CMakeLists.txt
index db87d06..f3d2825 100644
--- a/external/toxcore/CMakeLists.txt
+++ b/external/toxcore/CMakeLists.txt
@@ -91,6 +91,8 @@ add_library(toxcore STATIC
 	${TOX_DIR}toxcore/logger.h
 	${TOX_DIR}toxcore/Messenger.c
 	${TOX_DIR}toxcore/Messenger.h
+	${TOX_DIR}toxcore/mem.c
+	${TOX_DIR}toxcore/mem.h
 	${TOX_DIR}toxcore/mono_time.c
 	${TOX_DIR}toxcore/mono_time.h
 	${TOX_DIR}toxcore/net_crypto.c
diff --git a/src/hash_utils.hpp b/src/hash_utils.hpp
index 4de52ec..d535aef 100644
--- a/src/hash_utils.hpp
+++ b/src/hash_utils.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <cstdint>
+#include <cstddef>
 #include <vector>
 
 // returns the 20bytes sha1 hash