diff --git a/common/rfb/CMsgWriter.cxx b/common/rfb/CMsgWriter.cxx
index fa78404..7a89a93 100644
--- a/common/rfb/CMsgWriter.cxx
+++ b/common/rfb/CMsgWriter.cxx
@@ -82,6 +82,8 @@
     encodings[nEncodings++] = pseudoEncodingExtendedDesktopSize;
   if (cp->supportsDesktopRename)
     encodings[nEncodings++] = pseudoEncodingDesktopName;
+  if (cp->supportsLEDState)
+    encodings[nEncodings++] = pseudoEncodingLEDState;
 
   encodings[nEncodings++] = pseudoEncodingLastRect;
   encodings[nEncodings++] = pseudoEncodingContinuousUpdates;