diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7886167..f16c361 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.7.2)
-project(ghcfilesystem)
+project(ghc_filesystem)
 
 if (POLICY CMP0077)
     cmake_policy(SET CMP0077 NEW)