diff --git a/README.md b/README.md
index 0637236..b5d2b04 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,5 @@ To run:
 ```bash
 docker run -d --rm -e "UNFLIPPER_TOKEN=[token]" --name unflipper ghcr.io/f13/unflipper
 ```
+
+`UNFLIPPER_TOKEN_FILE` is also supported for use with Docker secrets.
diff --git a/start.sh b/start.sh
index 38da9d4..4f308d3 100755
--- a/start.sh
+++ b/start.sh
@@ -1,3 +1,23 @@
 #!/bin/bash
 
-/usr/bin/env python3 start.py
\ No newline at end of file
+file_env() {
+	local var="$1"
+	local fileVar="${var}_FILE"
+	local def="${2:-}"
+	if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
+		echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
+		exit 1
+	fi
+	local val="$def"
+	if [ "${!var:-}" ]; then
+		val="${!var}"
+	elif [ "${!fileVar:-}" ]; then
+		val="$(< "${!fileVar}")"
+	fi
+	export "$var"="$val"
+	unset "$fileVar"
+}
+
+file_env 'UNFLIPPER_TOKEN'
+
+/usr/bin/env python3 start.py