diff --git a/common/rfb/ConnParams.h b/common/rfb/ConnParams.h
index f81a358..35e0605 100644
--- a/common/rfb/ConnParams.h
+++ b/common/rfb/ConnParams.h
@@ -80,6 +80,7 @@
     bool supportsLastRect;
 
     bool supportsSetDesktopSize;
+    bool supportsFence;
 
     bool customCompressLevel;
     int compressLevel;