diff --git a/src/client/ClientMessage.hxx b/src/client/ClientMessage.hxx
index 3d28e01dc..bc6a4cd41 100644
--- a/src/client/ClientMessage.hxx
+++ b/src/client/ClientMessage.hxx
@@ -24,6 +24,12 @@
 
 #include <string>
 
+#ifdef WIN32
+/* fuck WIN32! */
+#include <windows.h>
+#undef GetMessage
+#endif
+
 /**
  * A client-to-client message.
  */