diff --git a/Documentation/diff-format.adoc b/Documentation/diff-format.adoc
index 9f7e988241..7f18c64f1e 100644
--- a/Documentation/diff-format.adoc
+++ b/Documentation/diff-format.adoc
@@ -19,9 +19,7 @@ compared differs:
 `git-diff-files [<pattern>...]`::
         compares the index and the files on the filesystem.
 
-The `git-diff-tree` command begins its output by printing the hash of
-what is being compared. After that, all the commands print one output
-line per changed file.
+All the commands print one output line per changed file.
 
 An output line is formatted this way: