diff --git a/config.toml b/config.toml
index 84a24fb..1968212 100644
--- a/config.toml
+++ b/config.toml
@@ -34,6 +34,11 @@ relativeURLs = true
     weight = -90
     url = "https://data-apis.org/dataframe-api/draft/"
 
+[[menu.main]]
+    name = "DataFrame interchange protocol"
+    weight = -80
+    url = "https://data-apis.org/dataframe-protocol/latest/"
+
 [[menu.main]]
     name = "Annual reports"
     weight = -50