diff --git a/rfb/SFTMsgWriter.h b/rfb/SFTMsgWriter.h
index ba5bf1c..dcf2e2d 100644
--- a/rfb/SFTMsgWriter.h
+++ b/rfb/SFTMsgWriter.h
@@ -26,6 +26,7 @@
 
 #include <rdr/OutStream.h>
 #include <rfb/FileInfo.h>
+#include <rfb/msgTypes.h>
 
 namespace rfb {
   class SFTMsgWriter