diff --git a/Docker-usage-instructions.md b/Docker-usage-instructions.md
index 0a03f8a..4a4837e 100644
--- a/Docker-usage-instructions.md
+++ b/Docker-usage-instructions.md
@@ -42,5 +42,16 @@ You can also use the current working directory as the output directory by specif
 For more information, please refer to the [Dockerfile](https://github.com/Tyrrrz/DiscordChatExporter/blob/master/Dockerfile) and [Docker documentation](https://docs.docker.com/engine/reference/run/).<br/>
 To get your Token and Channel IDs, please refer to [this page](https://github.com/Tyrrrz/DiscordChatExporter/wiki/Obtaining-Token-and-Channel-IDs).
 
+### Environment variables (advanced)
+
+DCE.CLI accepts environment variables as fallback for the `--token` and `--bot` options.
+
+`DISCORD_TOKEN` for user tokens<br/>
+`DISCORD_TOKEN_BOT` for bot tokens
+
+You can use these variables either with a combination of the `--env-file` Docker option and a `.env` file or with the `--env` option.<br/>
+Please refer to the Docker documentation for more information:<br/>
+* [Docker run - Set environment variables](https://docs.docker.com/engine/reference/commandline/run/#set-environment-variables--e---env---env-file)<br/>
+
 ##
 Special thanks to [@simnalamburt](https://github.com/simnalamburt) (dockerize) and [@Nimja](https://github.com/nimja) (better instructions)
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