diff --git a/common/rfb/CMsgReader.cxx b/common/rfb/CMsgReader.cxx
index eee6d27..c325d48 100644
--- a/common/rfb/CMsgReader.cxx
+++ b/common/rfb/CMsgReader.cxx
@@ -340,7 +340,6 @@
     buf[0] = (unsigned)buf[0] * 255/alpha;
     buf[1] = (unsigned)buf[1] * 255/alpha;
     buf[2] = (unsigned)buf[2] * 255/alpha;
-    buf[3] = alpha;
 
     buf += 4;
   }