diff --git a/docs/user_guide.md b/docs/user_guide.md
index 64540cf5..684800d9 100644
--- a/docs/user_guide.md
+++ b/docs/user_guide.md
@@ -104,6 +104,7 @@ and MSWord formats are available).
 
 ## Documentation for Previous Versions of NCEPLIBS-g2c
 
+* [NCEPLIBS-g2c Version 2.0.0](ver-2.0.0/index.html)
 * [NCEPLIBS-g2c Version 1.9.0](ver-1.9.0/index.html)
 * [NCEPLIBS-g2c Version 1.8.0](ver-1.8.0/index.html)
 * [NCEPLIBS-g2c Version 1.7.0](ver-1.7.0/index.html)