diff --git a/src/protocol/parser/pass_symbols.rs b/src/protocol/parser/pass_symbols.rs
index 9f48caf8d41d83e2506044c5e009aeb63794dd96..995dfa15100c3f0d1e3f44779257ea150cbeb60e 100644
--- a/src/protocol/parser/pass_symbols.rs
+++ b/src/protocol/parser/pass_symbols.rs
@@ -230,23 +230,23 @@ impl PassSymbols {
                 ast_definition_id = union_def_id.upcast()
             },
             KW_FUNCTION => {
-                let func_def_id = ctx.heap.alloc_function_definition(|this| {
-                    FunctionDefinition::new_empty(this, module.root_id, definition_span, identifier, poly_vars)
+                let proc_def_id = ctx.heap.alloc_procedure_definition(|this| {
+                    ProcedureDefinition::new_empty(this, module.root_id, definition_span, ProcedureKind::Function, identifier, poly_vars)
                 });
                 definition_class = DefinitionClass::Function;
-                ast_definition_id = func_def_id.upcast();
+                ast_definition_id = proc_def_id.upcast();
             },
             KW_PRIMITIVE | KW_COMPOSITE => {
-                let component_variant = if kw_text == KW_PRIMITIVE {
-                    ComponentVariant::Primitive
+                let procedure_kind = if kw_text == KW_PRIMITIVE {
+                    ProcedureKind::Primitive
                 } else {
-                    ComponentVariant::Composite
+                    ProcedureKind::Composite
                 };
-                let comp_def_id = ctx.heap.alloc_component_definition(|this| {
-                    ComponentDefinition::new_empty(this, module.root_id, definition_span, component_variant, identifier, poly_vars)
+                let proc_def_id = ctx.heap.alloc_procedure_definition(|this| {
+                    ProcedureDefinition::new_empty(this, module.root_id, definition_span, procedure_kind, identifier, poly_vars)
                 });
                 definition_class = DefinitionClass::Component;
-                ast_definition_id = comp_def_id.upcast();
+                ast_definition_id = proc_def_id.upcast();
             },
             _ => unreachable!("encountered keyword '{}' in definition range", String::from_utf8_lossy(kw_text)),
         }