diff --git a/README.md b/README.md
index 5b8d2b6..134e72e 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,16 @@ import (
 ...
 ```
 
+### 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.
+
 ### GOPATH
 
 Make sure your `PATH` includes the `$GOPATH/bin` directory so your commands can
diff --git a/docs.go b/docs.go
index 9f82fc6..ace6a6b 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 b925cb9..12d5d3c 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 (