diff --git a/src/cas/build/Makefile b/src/cas/build/Makefile
index c71fd6d48..02d864966 100644
--- a/src/cas/build/Makefile
+++ b/src/cas/build/Makefile
@@ -42,7 +42,7 @@ LIBSRCS += casMonitor.cc
 LIBSRCS += casMonEvent.cc
 LIBSRCS += inBuf.cc
 LIBSRCS += outBuf.cc
-LIBSRCS += dgInBuf.cc 
+#LIBSRCS += dgInBuf.cc 
 LIBSRCS += casCtx.cc 
 LIBSRCS += casEventMask.cc
 LIBSRCS += ioBlocked.cc
@@ -57,7 +57,7 @@ LIBSRCS += casStreamOS.cc
 LIBSRCS += caServerIO.cc
 LIBSRCS += casIntfIO.cc
 LIBSRCS += casDGIntfIO.cc
-LIBSRCS += casDGIO.cc
+#LIBSRCS += casDGIO.cc
 LIBSRCS += casStreamIO.cc
 
 LIBRARY = cas