diff --git a/CMakeLists.txt b/CMakeLists.txt
index f5a378ee..21dbf819 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,10 +42,11 @@ if(POLLER STREQUAL "")
                 else()
                     if(CMAKE_HOST_WIN32)
                         set(CMAKE_REQUIRED_INCLUDES winsock2.h)
+						set(HAVE_SELECT 1)
                     else()
                         set(CMAKE_REQUIRED_INCLUDES sys/select.h)
+						check_function_exists(select HAVE_SELECT)
                     endif()
-                    check_function_exists(select HAVE_SELECT)
                     set(CMAKE_REQUIRED_INCLUDES )
                     if(HAVE_SELECT)
                         set(POLLER "select")