diff --git a/deps/ox/CMakeLists.txt b/deps/ox/CMakeLists.txt
index c2de42f1..244a0bc2 100644
--- a/deps/ox/CMakeLists.txt
+++ b/deps/ox/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.19)
 set(CMAKE_POLICY_DEFAULT_CMP0110 NEW) # requires CMake 3.19
 
-project(Ox)
+project(Ox CXX)
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
 include(address_sanitizer)