diff --git a/CMakeLists.txt b/CMakeLists.txt
index 49e0343..6d27344 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # libustl: build system
 
 cmake_minimum_required(VERSION 3.16)
-project(libustl VERSION 2.3 LANGUAGES CPP)
+project(libustl VERSION 2.3 LANGUAGES CXX)
 
 # Libraries that libexample depends on
 find_package(Gint 2.7 REQUIRED)