diff --git a/nsock/src/engine_poll.c b/nsock/src/engine_poll.c
index 0bd6f0a1e..da41697c7 100644
--- a/nsock/src/engine_poll.c
+++ b/nsock/src/engine_poll.c
@@ -61,6 +61,8 @@
 
 #ifdef HAVE_CONFIG_H
 #include "nsock_config.h"
+#elif WIN32
+#include "nsock_winconfig.h"
 #endif
 
 #if HAVE_POLL