diff --git a/src/test/java/walkingkooka/tree/search/SearchNodeTestCase.java b/src/test/java/walkingkooka/tree/search/SearchNodeTestCase.java
index 0fe851d..4d52869 100644
--- a/src/test/java/walkingkooka/tree/search/SearchNodeTestCase.java
+++ b/src/test/java/walkingkooka/tree/search/SearchNodeTestCase.java
@@ -216,7 +216,7 @@ public final String isMethodTypeNameSuffix() {
 
     @Override
     public final Predicate<String> isMethodIgnoreMethodFilter() {
-        return (m) -> m.equals("isRoot");
+        return (m) -> m.equals("isRoot") || m.equals("isEmpty");
     }
 
     // TypeNameTesting..................................................................................................