diff --git a/lib/multi.h b/lib/multi.h
index d178d5340add090892cc4e8dece8a0b32e856172..d92f767cb65eda1156a6b9359b20c6d850324f9e 100644
--- a/lib/multi.h
+++ b/lib/multi.h
@@ -50,7 +50,7 @@
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif
-#ifdef defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
+#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
 #include <winsock.h>
 #endif