diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5fa0daf409563c69d6bceaf34e3dfd82860dc7a3..cee474e02255da3dac23dd7960164505d9e34bab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,6 +50,8 @@ target_link_libraries(usgscsm
                       gtest ${CMAKE_THREAD_LIBS_INIT})
 
 if(WIN32)
+  option(CMAKE_USE_WIN32_THREADS_INIT "using WIN32 threads" ON)
+  option(gtest_disable_pthreads "Disable uses of pthreads in gtest." ON)
   install(TARGETS usgscsm
     RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR})
     install(DIRECTORY ${USGSCSM_INCLUDE_DIRS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})