diff --git a/src/transport.cpp b/src/transport.cpp
index 5c25150909b2c2c4843b6b12fe2c4cdfc6c1da01..99ef21d93bad98fddd108002f4978eb3f6063288 100644
--- a/src/transport.cpp
+++ b/src/transport.cpp
@@ -28,7 +28,7 @@
 #include "transport/logging.h"
 #include "discoinforesponder.h"
 #include "storageparser.h"
-#ifdef _MSC_VER
+#ifdef _WIN32
 #include <Swiften/TLS/CAPICertificate.h>
 #include "Swiften/TLS/Schannel/SchannelServerContext.h"
 #include "Swiften/TLS/Schannel/SchannelServerContextFactory.h"