diff --git a/configure.cmake b/configure.cmake
index 0bcf81d8c64..8383b6921f8 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -134,6 +134,7 @@ IF(UNIX)
   IF(NOT LIBRT)
     MY_SEARCH_LIBS(clock_gettime rt LIBRT)
   ENDIF()
+  set(THREADS_PREFER_PTHREAD_FLAG ON)
   FIND_PACKAGE(Threads)
 
   SET(CMAKE_REQUIRED_LIBRARIES