diff --git a/CMakeLists.txt b/CMakeLists.txt
index 143d84d..73f429b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ include_directories(
 
 # configure
 include(GNUInstallDirs)
-set(LIBEXECDIR ${CMAKE_INSTALL_LIBEXECDIR})
+set(LIBEXECDIR ${CMAKE_INSTALL_FULL_LIBEXECDIR})
 configure_file(org.freedesktop.impl.portal.desktop.hyprland.service.in org.freedesktop.impl.portal.desktop.hyprland.service @ONLY)
 configure_file(contrib/systemd/xdg-desktop-portal-hyprland.service.in contrib/systemd/xdg-desktop-portal-hyprland.service @ONLY)