diff --git a/CMakeLists.txt b/CMakeLists.txt
index df5033f7e..f46a5f591 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,8 +3,9 @@ set(CMAKE_USER_MAKE_RULES_OVERRIDE cmake/c_flag_overrides.cmake)
 
 project(stlink C)
 set(PROJECT_DESCRIPTION "Open source version of the STMicroelectronics ST-LINK Tools")
-set(STLINK_UDEV_RULES_DIR "/etc/udev/rules.d" CACHE PATH "Udev rules directory")
-set(STLINK_MODPROBED_DIR "/etc/modprobe.d" CACHE PATH "modprobe.d directory")
+include(GNUInstallDirs)
+set(STLINK_UDEV_RULES_DIR "${CMAKE_INSTALL_FULL_SYSCONFDIR}/udev/rules.d" CACHE PATH "Udev rules directory")
+set(STLINK_MODPROBED_DIR "${CMAKE_INSTALL_FULL_SYSCONFDIR}/modprobe.d" CACHE PATH "modprobe.d directory")
 set(STLINK_STATIC_LIB ON CACHE BOOL "Install static lib")
 
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)