diff --git a/_pkgdown.yml b/_pkgdown.yml
index 6490c0997..7602aaa3f 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -154,6 +154,7 @@ reference:
   - ansi_nzchar
   - ansi_regex
   - ansi_simplify
+  - ansi_string
   - ansi_strip
   - ansi_strsplit
   - ansi_strtrim