diff --git a/compiler/tests/org/jetbrains/jet/jvm/compiler/NamespaceComparator.java b/compiler/tests/org/jetbrains/jet/jvm/compiler/NamespaceComparator.java
index 1669706a181..232c7ec4f7e 100644
--- a/compiler/tests/org/jetbrains/jet/jvm/compiler/NamespaceComparator.java
+++ b/compiler/tests/org/jetbrains/jet/jvm/compiler/NamespaceComparator.java
@@ -24,6 +24,7 @@ import org.jetbrains.jet.codegen.PropertyCodegen;
 import org.jetbrains.jet.lang.descriptors.*;
 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
 import org.jetbrains.jet.lang.resolve.DescriptorUtils;
+import org.jetbrains.jet.lang.resolve.constants.CompileTimeConstant;
 import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
 import org.jetbrains.jet.lang.resolve.scopes.receivers.ExtensionReceiver;
@@ -467,6 +468,10 @@ public class NamespaceComparator {
             sb.append(s);
         }
 
+        public void serialize(CompileTimeConstant s) {
+            sb.append(s);
+        }
+
         public void serialize(ClassDescriptor clazz) {
             sb.append(DescriptorUtils.getFQName(clazz));
         }