diff --git a/cmake_modules/gitlab-ci-initial-cache.cmake b/cmake_modules/gitlab-ci-initial-cache.cmake
index deaba93a90741a6762daafa1be68d49b76002247..1b6cef645ab841fc1c16ad30d2cc99e3500c457d 100644
--- a/cmake_modules/gitlab-ci-initial-cache.cmake
+++ b/cmake_modules/gitlab-ci-initial-cache.cmake
@@ -1,4 +1,4 @@
-set(CMAKE_INSTALL_PREFIX "$PWD/install" CACHE PATH "")
+set(CMAKE_INSTALL_PREFIX "$ENV{PWD}/install" CACHE PATH "")
 
 set(CMAKE_VERBOSE_MAKEFILE "ON" CACHE BOOL "")