diff --git a/samples/i686-w64-mingw32/crosstool.config b/samples/i686-w64-mingw32/crosstool.config
index c731d7b3..956d58ad 100644
--- a/samples/i686-w64-mingw32/crosstool.config
+++ b/samples/i686-w64-mingw32/crosstool.config
@@ -7,4 +7,5 @@ CT_KERNEL_WINDOWS=y
 CT_BINUTILS_PLUGINS=y
 CT_MINGW_DIRECTX=y
 CT_MINGW_DDK=y
+CT_THREADS_POSIX=y
 CT_CC_LANG_CXX=y