diff --git a/common/rfb/VNCSConnectionST.h b/common/rfb/VNCSConnectionST.h
index 72dc59c..5eb908a 100644
--- a/common/rfb/VNCSConnectionST.h
+++ b/common/rfb/VNCSConnectionST.h
@@ -183,7 +183,7 @@
 
     bool inProcessMessages;
 
-    bool syncFence;
+    bool pendingSyncFence, syncFence;
     rdr::U32 fenceFlags;
     unsigned fenceDataLen;
     char *fenceData;