diff --git a/CMakeLists.txt b/CMakeLists.txt
index e219c8f..45dfbac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -86,8 +86,7 @@ if(META_HPP_INSTALL)
     include(GNUInstallDirs)
 
     set(META_HPP_INSTALL_CONFIG_DIR
-        "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
-        CACHE STRING "Installation directory for cmake files")
+        "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
 
     set(META_HPP_INSTALL_CONFIG_INPUT
         "${CMAKE_CURRENT_SOURCE_DIR}/cmake/config.cmake.in")