diff --git a/Makefile b/Makefile
index 7d7be477f..5f5774580 100644
--- a/Makefile
+++ b/Makefile
@@ -90,8 +90,10 @@ Rpack:
 	cp -r src xgboost/src/src
 	mkdir xgboost/src/subtree
 	mkdir xgboost/src/subtree/rabit
+	mkdir xgboost/src/subtree/rabit/rabit-learn
 	cp -r subtree/rabit/include xgboost/src/subtree/rabit/include
 	cp -r subtree/rabit/src xgboost/src/subtree/rabit/src
+	cp -r subtree/rabit/rabit-learn/io xgboost/src/subtree/rabit/rabit-learn/io
 	rm -rf xgboost/src/subtree/rabit/src/*.o
 	mkdir xgboost/src/wrapper
 	cp  wrapper/xgboost_wrapper.h xgboost/src/wrapper