2 files changed, 3 insertions, 6 deletions
diff --git a/src/main/java/org/shedlang/compiler/ast/untyped/UntypedSumTypeDefinitionNode.java b/src/main/java/org/shedlang/compiler/ast/untyped/UntypedSumTypeDefinitionNode.java
index 18bdc6d8..a478e588 100644
--- a/src/main/java/org/shedlang/compiler/ast/untyped/UntypedSumTypeDefinitionNode.java
+++ b/src/main/java/org/shedlang/compiler/ast/untyped/UntypedSumTypeDefinitionNode.java
@@ -13,7 +13,7 @@ public record UntypedSumTypeDefinitionNode(
     Visibility visibility,
     List<UntypedTypeLevelExpressionNode> variants,
     Source source
-) implements UntypedNamespaceStatementNode {
+) implements UntypedNamespaceStatementNode, UntypedVariableDeclarationNode {
     public static Builder builder() {
         return new Builder("DefaultSumTypeName", Visibility.PRIVATE, P.vector());
     }
diff --git a/src/main/java/org/shedlang/compiler/typechecker/DeclaredVariables.java b/src/main/java/org/shedlang/compiler/typechecker/DeclaredVariables.java
index 6d1c80eb..35af5842 100644
--- a/src/main/java/org/shedlang/compiler/typechecker/DeclaredVariables.java
+++ b/src/main/java/org/shedlang/compiler/typechecker/DeclaredVariables.java
@@ -2,7 +2,6 @@ package org.shedlang.compiler.typechecker;
 
 import org.pcollections.PVector;
 import org.shedlang.compiler.ast.untyped.*;
-import org.shedlang.compiler.types.Visibility;
 
 import java.util.List;
 
@@ -100,11 +99,9 @@ class DeclaredVariables {
                 ));
 
             case UntypedSumTypeDefinitionNode sumType ->
-                variables.plus(new DeclaredVariable(
-                    sumType.name(),
+                variables.plus(DeclaredVariable.fromNode(
                     VariableType.CONSTANT,
-                    Visibility.PRIVATE,
-                    sumType.source()
+                    sumType
                 ));
         };
     }