Index: openmp/tools/multiplex/CMakeLists.txt
===================================================================
--- openmp/tools/multiplex/CMakeLists.txt
+++ openmp/tools/multiplex/CMakeLists.txt
@@ -4,7 +4,7 @@
   add_library(ompt-multiplex INTERFACE)
   target_include_directories(ompt-multiplex INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
 
-  install(FILES ompt-multiplex.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+  install(FILES ompt-multiplex.h DESTINATION "${LIBOMP_HEADERS_INSTALL_PATH}")
 
   add_subdirectory(tests)
 endif()