diff --git a/NAMESPACE b/NAMESPACE
index 498cdb4..c80ffba 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -55,6 +55,7 @@ importFrom(matlab2r,inputdlg)
 importFrom(matlab2r,isempty)
 importFrom(matlab2r,isfield)
 importFrom(matlab2r,isspace)
+importFrom(matlab2r,log2)
 importFrom(matlab2r,max)
 importFrom(matlab2r,min)
 importFrom(matlab2r,nargin)