diff --git a/src/protocol/ast.rs b/src/protocol/ast.rs
index 3bcc0b525893c980586cd57246693feb65892865..5278ba7082d2068751b6a24eb002b51d53c1b266 100644
--- a/src/protocol/ast.rs
+++ b/src/protocol/ast.rs
@@ -1009,8 +1009,7 @@ impl UnionDefinition {
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum ProcedureKind {
     Function, // with return type
-    Primitive, // without return type
-    Composite,
+    Component,
 }
 
 /// Monomorphed instantiation of a procedure (or the sole instantiation of a