diff --git a/external/docs/content/docs/howto/maintain-git.html b/external/docs/content/docs/howto/maintain-git.html
index 238722b92f..026c49fca6 100644
--- a/external/docs/content/docs/howto/maintain-git.html
+++ b/external/docs/content/docs/howto/maintain-git.html
@@ -1,5 +1,5 @@
 ---
 ### DO NOT EDIT! Generated by script/update-docs.rb
 
-redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/maintain-git.txt
+redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/maintain-git.adoc
 ---
diff --git a/external/docs/content/docs/howto/revert-a-faulty-merge.html b/external/docs/content/docs/howto/revert-a-faulty-merge.html
index f1b18ca7ce..1b69856771 100644
--- a/external/docs/content/docs/howto/revert-a-faulty-merge.html
+++ b/external/docs/content/docs/howto/revert-a-faulty-merge.html
@@ -1,5 +1,5 @@
 ---
 ### DO NOT EDIT! Generated by script/update-docs.rb
 
-redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/revert-a-faulty-merge.txt
+redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/revert-a-faulty-merge.adoc
 ---
diff --git a/external/docs/content/docs/howto/setup-git-server-over-http.html b/external/docs/content/docs/howto/setup-git-server-over-http.html
index 5d350ccf26..20bd8351fa 100644
--- a/external/docs/content/docs/howto/setup-git-server-over-http.html
+++ b/external/docs/content/docs/howto/setup-git-server-over-http.html
@@ -1,5 +1,5 @@
 ---
 ### DO NOT EDIT! Generated by script/update-docs.rb
 
-redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/setup-git-server-over-http.txt
+redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/setup-git-server-over-http.adoc
 ---
diff --git a/external/docs/content/docs/howto/update-hook-example.html b/external/docs/content/docs/howto/update-hook-example.html
index 0876ac5143..f1400d7e13 100644
--- a/external/docs/content/docs/howto/update-hook-example.html
+++ b/external/docs/content/docs/howto/update-hook-example.html
@@ -1,5 +1,5 @@
 ---
 ### DO NOT EDIT! Generated by script/update-docs.rb
 
-redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/update-hook-example.txt
+redirect_to: https://github.com/git/git/blob/HEAD/Documentation/howto/update-hook-example.adoc
 ---
diff --git a/script/update-docs.rb b/script/update-docs.rb
index 919db2b15e..83782c3f98 100644
--- a/script/update-docs.rb
+++ b/script/update-docs.rb
@@ -605,7 +605,7 @@ def index_doc(filter_tags, doc_list, get_content)
             type = 'tree'
             target = 'howto'
           else
-            target += '.txt'
+            target += '.adoc'
           end
           front_matter = { "redirect_to" => "https://github.com/git/git/#{type}/HEAD/Documentation/#{target}" } # ltrim `docs/`
           FileUtils.mkdir_p(File.dirname(doc_path))