diff --git a/lucene/codecs/src/test/org/apache/lucene/codecs/simpletext/TestSimpleTextPostingsFormat.java b/lucene/codecs/src/test/org/apache/lucene/codecs/simpletext/TestSimpleTextPostingsFormat.java
index ef3ca38dc0a..81219c6b44b 100644
--- a/lucene/codecs/src/test/org/apache/lucene/codecs/simpletext/TestSimpleTextPostingsFormat.java
+++ b/lucene/codecs/src/test/org/apache/lucene/codecs/simpletext/TestSimpleTextPostingsFormat.java
@@ -19,10 +19,12 @@ package org.apache.lucene.codecs.simpletext;
 
 import org.apache.lucene.codecs.Codec;
 import org.apache.lucene.index.BasePostingsFormatTestCase;
+import org.apache.lucene.util.LuceneTestCase.Nightly;
 
 /**
  * Tests SimpleText's postings
  */
+@Nightly // please figure out why I am so horrendously slow!
 public class TestSimpleTextPostingsFormat extends BasePostingsFormatTestCase {
   private final Codec codec = new SimpleTextCodec();