4 files changed, 16 insertions, 4 deletions
diff --git a/Documentation/git-diff-cache.txt b/Documentation/git-diff-cache.txt
index bd8a6e5c5e..e3ed7131a4 100644
--- a/Documentation/git-diff-cache.txt
+++ b/Documentation/git-diff-cache.txt
@@ -9,7 +9,7 @@ git-diff-cache - Compares content and mode of blobs between the cache and reposi
 
 SYNOPSIS
 --------
-'git-diff-cache' [-p] [-r] [-z] [-m] [-M] [-R] [--cached] <tree-ish>
+'git-diff-cache' [-p] [-r] [-z] [-m] [-M] [-R] [-C] [--cached] <tree-ish>
 
 DESCRIPTION
 -----------
@@ -36,6 +36,9 @@ OPTIONS
 -M::
 	Detect renames; implies -p.
 
+-C::
+	Detect copies as well as renames; implies -p.
+
 -R::
 	Output diff in reverse.
 
diff --git a/Documentation/git-diff-files.txt b/Documentation/git-diff-files.txt
index f79820a65c..1eae3d0333 100644
--- a/Documentation/git-diff-files.txt
+++ b/Documentation/git-diff-files.txt
@@ -9,7 +9,7 @@ git-diff-files - Compares files in the working tree and the cache
 
 SYNOPSIS
 --------
-'git-diff-files' [-p] [-q] [-r] [-z] [-M] [-R] [<pattern>...]
+'git-diff-files' [-p] [-q] [-r] [-z] [-M] [-C] [-R] [<pattern>...]
 
 DESCRIPTION
 -----------
@@ -32,6 +32,9 @@ OPTIONS
 -M::
 	Detect renames; implies -p.
 
+-C::
+	Detect copies as well as renames; implies -p.
+
 -r::
 	This flag does not mean anything.  It is there only to match
 	git-diff-tree.  Unlike git-diff-tree, git-diff-files always looks
diff --git a/Documentation/git-diff-helper.txt b/Documentation/git-diff-helper.txt
index 800d71a386..302789e9d1 100644
--- a/Documentation/git-diff-helper.txt
+++ b/Documentation/git-diff-helper.txt
@@ -9,7 +9,7 @@ git-diff-helper - Generates patch format output for git-diff-*
 
 SYNOPSIS
 --------
-'git-diff-helper' [-z] [-R] [-M]
+'git-diff-helper' [-z] [-R] [-M] [-C]
 
 DESCRIPTION
 -----------
@@ -34,6 +34,8 @@ OPTIONS
 -M::
 	Detect renames.
 
+-C::
+	Detect copies as well as renames.
 
 See Also
 --------
diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index 244f285137..f4e95a97c3 100644
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -9,7 +9,7 @@ git-diff-tree - Compares the content and mode of blobs found via two tree object
 
 SYNOPSIS
 --------
-'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\*
+'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\*
 
 DESCRIPTION
 -----------
@@ -36,6 +36,10 @@ OPTIONS
 -M::
 	Detect renames; implies -p, in turn implying also '-r'.
 
+-C::
+	Detect copies as well as renames; implies -p, in turn
+	implying also '-r'.
+
 -R::
 	Output diff in reverse.