diff --git a/src/test/java/org/codelibs/fess/crawler/transformer/FessXpathTransformerTest.java b/src/test/java/org/codelibs/fess/crawler/transformer/FessXpathTransformerTest.java
index fd5273e8d..8991933a5 100644
--- a/src/test/java/org/codelibs/fess/crawler/transformer/FessXpathTransformerTest.java
+++ b/src/test/java/org/codelibs/fess/crawler/transformer/FessXpathTransformerTest.java
@@ -650,6 +650,7 @@ public class FessXpathTransformerTest extends UnitFessTestCase {
     public void test_getThumbnailUrl_no() throws Exception {
 
         final FessXpathTransformer transformer = new FessXpathTransformer();
+        transformer.init();
         final ResponseData responseData = new ResponseData();
         responseData.setUrl("http://example.com/");