diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/diff/DiffFormatterTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/diff/DiffFormatterTest.java
index 3d46a47ce..a929def2f 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/diff/DiffFormatterTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/diff/DiffFormatterTest.java
@@ -11,6 +11,8 @@
 package org.eclipse.jgit.diff;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 
 import java.io.BufferedOutputStream;
 import java.io.ByteArrayOutputStream;
@@ -73,6 +75,17 @@ public class DiffFormatterTest extends RepositoryTestCase {
 		super.tearDown();
 	}
 
+	@Test
+	public void testDefaultRenameDetectorSettings() throws Exception {
+		RenameDetector rd = df.getRenameDetector();
+		assertNull(rd);
+		df.setDetectRenames(true);
+		rd = df.getRenameDetector();
+		assertNotNull(rd);
+		assertEquals(400, rd.getRenameLimit());
+		assertEquals(60, rd.getRenameScore());
+	}
+
 	@Test
 	public void testCreateFileHeader_Add() throws Exception {
 		ObjectId adId = blob("a\nd\n");