diff --git a/CHANGES.txt b/CHANGES.txt
index 39f507eb92a..c16118331db 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -38,6 +38,7 @@ Trunk (unreleased changes)
     HADOOP-2088 Make hbase runnable in $HADOOP_HOME/build(/contrib/hbase)
     HADOOP-2126 Use Bob Jenkins' hash for bloom filters
     HADOOP-2157 Make Scanners implement Iterable
+    HADOOP-2176 Htable.deleteAll documentation is ambiguous
 
 Release 0.15.1
 Branch 0.15
diff --git a/src/java/org/apache/hadoop/hbase/HTable.java b/src/java/org/apache/hadoop/hbase/HTable.java
index eed252962ca..e8edd7dec59 100644
--- a/src/java/org/apache/hadoop/hbase/HTable.java
+++ b/src/java/org/apache/hadoop/hbase/HTable.java
@@ -630,8 +630,7 @@ public class HTable implements HConstants {
   }
   
   /** 
-   * Delete all values for a column
-   * 
+   * Delete all cells that match the passed row and column.
    * @param row Row to update
    * @param column name of column whose value is to be deleted
    * @throws IOException 
@@ -641,8 +640,8 @@ public class HTable implements HConstants {
   }
   
   /** 
-   * Delete all values for a column
-   * 
+   * Delete all cells that match the passed row and column and whose
+   * timestamp is equal-to or older than the passed timestamp.
    * @param row Row to update
    * @param column name of column whose value is to be deleted
    * @param ts Delete all cells of the same timestamp or older.
@@ -978,4 +977,4 @@ public class HTable implements HConstants {
       };
     }
   }
-}
\ No newline at end of file
+}