diff --git a/NAMESPACE b/NAMESPACE
index 75b711e..d66f14f 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -79,4 +79,6 @@ importFrom(methods,slotNames)
 importFrom(rtracklayer,export)
 importFrom(stats,model.matrix)
 importFrom(stats,pbeta)
+importFrom(utils,read.table)
+importFrom(utils,write.table)
 useDynLib(raer, .registration = TRUE)