Fix #70
diff --git a/NAMESPACE b/NAMESPACE
index 6ec7c1e..d30b54e 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -31,6 +31,7 @@
 importFrom(stringr,str_extract_all)
 importFrom(stringr,str_match)
 importFrom(stringr,str_match_all)
+importFrom(stringr,str_replace)
 importFrom(stringr,str_replace_all)
 importFrom(stringr,str_split)
 importFrom(stringr,str_sub)