diff --git a/contrib/sockets/sockets.lisp b/contrib/sockets/sockets.lisp
index a312e916f..44846cae4 100644
--- a/contrib/sockets/sockets.lisp
+++ b/contrib/sockets/sockets.lisp
@@ -62,7 +62,7 @@
  "#endif")
 #+:wsock
 (clines
- #+(and (or :msvc :mingw32) (not :threads))
+ #+(or :msvc :mingw32)
  "#include <winsock2.h>"
  "typedef unsigned int uint32_t;"
  #-:mingw32