diff --git a/reactor/code/src/jetbrains/mps/unification/Node.java b/reactor/code/src/jetbrains/mps/unification/Node.java
index f9494f81..6092033e 100644
--- a/reactor/code/src/jetbrains/mps/unification/Node.java
+++ b/reactor/code/src/jetbrains/mps/unification/Node.java
@@ -52,7 +52,7 @@ public interface Node extends Comparable<Node> {
 
     boolean is(Kind kind);
 
-    enum Kind {
+    public enum Kind {
         FUN,
         VAR,
         REF