diff --git a/docs/src/apis/categorical_algebra.md b/docs/src/apis/categorical_algebra.md
index 8e2e73e7a..b57de3e4f 100644
--- a/docs/src/apis/categorical_algebra.md
+++ b/docs/src/apis/categorical_algebra.md
@@ -107,6 +107,7 @@ We first give an overview of the data types used in the acset machinery.
 Modules = [
   CategoricalAlgebra.CSets,
   CategoricalAlgebra.StructuredCospans,
+  CategoricalAlgebra.ACSetInterface,
 ]
 Private = false
 ```