diff --git a/src/protocol/parser/pass_definitions.rs b/src/protocol/parser/pass_definitions.rs
index 2fe843f6a6a6c434b3a374966a6c6f2620dc0766..7a48893e72677a23ba5654dfbc30215d74d61db1 100644
--- a/src/protocol/parser/pass_definitions.rs
+++ b/src/protocol/parser/pass_definitions.rs
@@ -222,10 +222,10 @@ impl PassDefinitions {
                     &mut types_section, "an embedded type", Some(&mut close_pos)
                 )?;
                 let value = if has_embedded {
-                    UnionVariantValue::Embedded(types_section.into_vec())
+                    types_section.into_vec()
                 } else {
                     types_section.forget();
-                    UnionVariantValue::None
+                    Vec::new()
                 };
 
                 Ok(UnionVariantDefinition{