diff --git a/README.md b/README.md
index 953e3df..10f5ffc 100644
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ Documentation should be modified within `main.tf` and generated using [terraform
 Install it with `go get github.com/segmentio/terraform-docs` or `brew install terraform-docs` and then use it to generate the `README.md` file:
 
 ```
-terraform-docs --with-aggregate-type-defaults md ./ | cat -s | tail -r | tail -n +2 | tail -r > README.md
+terraform-docs --with-aggregate-type-defaults md ./ | sed -e '$ d' -e 'N;/^\n$/D;P;D' > README.md
 ```
 
 ## Contributing
diff --git a/main.tf b/main.tf
index 7f62484..d5d039a 100644
--- a/main.tf
+++ b/main.tf
@@ -71,7 +71,7 @@
 * Install it with `go get github.com/segmentio/terraform-docs` or `brew install terraform-docs` and then use it to generate the `README.md` file:
 *
 * ```
-* terraform-docs --with-aggregate-type-defaults md ./ | cat -s | tail -r | tail -n +2 | tail -r > README.md
+* terraform-docs --with-aggregate-type-defaults md ./ | sed -e '$ d' -e 'N;/^\n$/D;P;D' > README.md
 * ```
 
 * ## Contributing