diff --git a/nc_platform.cmake b/nc_platform.cmake
index c147295..3c09f6e 100644
--- a/nc_platform.cmake
+++ b/nc_platform.cmake
@@ -8,6 +8,7 @@ if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
     set(LINUX 1)
 elseif (${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
     set(FREEBSD 1)
+elseif (WIN32)
 else()
     message (FATAL_ERROR "unknown platform")
 endif()