Avoid reader/writer duplication in every encoder/decoder
diff --git a/common/rfb/TightDecoder.cxx b/common/rfb/TightDecoder.cxx
index d4ee877..83e84f7 100644
--- a/common/rfb/TightDecoder.cxx
+++ b/common/rfb/TightDecoder.cxx
@@ -37,7 +37,7 @@
 #include <rfb/tightDecode.h>
 #undef BPP
 
-TightDecoder::TightDecoder(CMsgReader* reader_) : reader(reader_)
+TightDecoder::TightDecoder(CMsgReader* reader) : Decoder(reader)
 {
 }