diff --git a/test/README b/test/README
index 33658f9..3b78c8c 100755
--- a/test/README
+++ b/test/README
@@ -6,3 +6,4 @@ To test Lrexlib, execute the following command line:
 
   posix --> test rex_posix library
   pcre  --> test rex_pcre library
+  onig  --> test rex_onig library