diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8eb6e60f..2184ae90 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -287,7 +287,7 @@ if(NOT HAVE_CLOCK_GETTIME)
     # CMAKE_REQUIRED_LIBRARIES for further tests too.
     if(HAVE_CLOCK_GETTIME_LIBRT)
         link_libraries(rt)
-        set(LIBS "-lrt") # For liblzma.pc
+        set(LIBS "-lrt ${LIBS}") # For liblzma.pc
     else()
         list(REMOVE_AT CMAKE_REQUIRED_LIBRARIES 0)
     endif()