diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b5ed1d..21ae33f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 
-project(eismultiplexer)
+project(eismultiplexer C)
 
 find_package(PkgConfig REQUIRED)
 find_package(Doxygen)