diff --git a/_pkgdown.yml b/_pkgdown.yml
index e991d879..ddf296b5 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -9,6 +9,7 @@ reference:
   - Places Ratings
   - Rat CNS
   - Tropical Atmosphere Ocean
+  - t1
 - title: Pre-processing
   desc: >
     Functions for data pre-processing