diff --git a/source/nix-language/main.adoc b/source/nix-language/main.adoc
index 2c811d9..6e98d5a 100644
--- a/source/nix-language/main.adoc
+++ b/source/nix-language/main.adoc
@@ -24,6 +24,8 @@ include::attribute-sets.adoc[leveloffset=+1]
 
 include::functions.adoc[leveloffset=+1]
 
+include::argument-sets.adoc[leveloffset=+1]
+
 include::if.adoc[leveloffset=+1]
 
 include::let.adoc[leveloffset=+1]