diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 049fd368..61bb00f2 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -1,3 +1,6 @@
+if (WIN32)
+    return()
+endif()
 find_package(Threads)
 
 # remove some warnings