diff --git a/lucene/CHANGES.txt b/lucene/CHANGES.txt
index 377165a312c..d30c96d2fae 100644
--- a/lucene/CHANGES.txt
+++ b/lucene/CHANGES.txt
@@ -716,6 +716,11 @@ Bug fixes
 * LUCENE-3589: BytesRef copy(short) didnt set length.
   (Peter Chang via Robert Muir)
 
+Documentation
+
+* LUCENE-3958: Javadocs corrections for IndexWriter.
+  (Iulius Curt via Robert Muir)
+
 ======================= Lucene 3.6.0 =======================
 
 Changes in backwards compatibility policy
diff --git a/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java b/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
index e16ca0243bf..93a77887f99 100644
--- a/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
+++ b/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
@@ -1345,7 +1345,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit {
   final InfoStream infoStream;
 
   /**
-   * Forces merge policy to merge segments until there's <=
+   * Forces merge policy to merge segments until there are <=
    * maxNumSegments.  The actual merges to be
    * executed are determined by the {@link MergePolicy}.
    *
@@ -1371,14 +1371,14 @@ public class IndexWriter implements Closeable, TwoPhaseCommit {
    * <p>The actual temporary usage could be much less than
    * these figures (it depends on many factors).</p>
    *
-   * <p>In general, once the this completes, the total size of the
+   * <p>In general, once this completes, the total size of the
    * index will be less than the size of the starting index.
    * It could be quite a bit smaller (if there were many
    * pending deletes) or just slightly smaller.</p>
    *
    * <p>If an Exception is hit, for example
-   * due to disk full, the index will not be corrupt and no
-   * documents will have been lost.  However, it may have
+   * due to disk full, the index will not be corrupted and no
+   * documents will be lost.  However, it may have
    * been partially merged (some segments were merged but
    * not all), and it's possible that one of the segments in
    * the index will be in non-compound format even when