diff --git a/README.md b/README.md
index b2abbcf9db..9c2cf851a3 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,16 @@ cli is tested against multiple versions of Go on Linux, and against the latest
 released version of Go on OS X and Windows.  For full details, see
 [`./.travis.yml`](./.travis.yml) and [`./appveyor.yml`](./appveyor.yml).
 
+### Build tags
+
+You can use the following build tags:
+
+#### `urfave_cli_no_docs`
+
+When set, this removes `ToMarkdown` and `ToMan` methods, so your application
+won't be able to call those. This reduces the resulting binary size by about
+300-400 KB (measured using Go 1.18.1 on Linux/amd64), due to less dependencies.
+
 ### Using `v1` releases
 
 ```
diff --git a/docs.go b/docs.go
index 5b94566128..725fa7ff2b 100644
--- a/docs.go
+++ b/docs.go
@@ -1,3 +1,6 @@
+//go:build !urfave_cli_no_docs
+// +build !urfave_cli_no_docs
+
 package cli
 
 import (
diff --git a/docs_test.go b/docs_test.go
index c0c851ed3c..f4bf1c54b6 100644
--- a/docs_test.go
+++ b/docs_test.go
@@ -1,3 +1,6 @@
+//go:build !urfave_cli_no_docs
+// +build !urfave_cli_no_docs
+
 package cli
 
 import (