diff --git a/R-package/NAMESPACE b/R-package/NAMESPACE
index b2fd407a0..ce2d7d901 100644
--- a/R-package/NAMESPACE
+++ b/R-package/NAMESPACE
@@ -5,6 +5,9 @@ export(xgb.DMatrix)
 export(xgb.getinfo)
 export(xgb.setinfo)
 
+# exportClasses(xgb.Boost)
+exportMethods(predict)
+
 # export(xgb.Booster)
 # export(xgb.train)
 # export(xgb.save)