diff --git a/Modules/FindLAPACK.cmake b/Modules/FindLAPACK.cmake
index 844d36ddca..3cb3653949 100644
--- a/Modules/FindLAPACK.cmake
+++ b/Modules/FindLAPACK.cmake
@@ -174,7 +174,7 @@ if(_libraries_work)
 endif()
 
  if(_libraries_work)
-   if("${_list}" STREQUAL "")
+   if("${_list}${_blas}" STREQUAL "")
      set(${LIBRARIES} "${LIBRARIES}-PLACEHOLDER-FOR-EMPTY-LIBRARIES")
    else()
      set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threads})