diff --git a/README.md b/README.md
index 1d28588..03eca2b 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,7 @@ docker create \
   -e PUID=1000 \
   -e PGID=1000 \
   -e TZ=Europe/London \
+  -e WEBROOT=domoticz `#optional` \
   -p 8080:8080 \
   -p 6144:6144 \
   -p 1443:1443 \
@@ -101,6 +102,7 @@ services:
       - PUID=1000
       - PGID=1000
       - TZ=Europe/London
+      - WEBROOT=domoticz #optional
     volumes:
       - <path to data>:/config
     ports:
@@ -124,6 +126,7 @@ Container images are configured using parameters passed at runtime (such as thos
 | `-e PUID=1000` | for UserID - see below for explanation |
 | `-e PGID=1000` | for GroupID - see below for explanation |
 | `-e TZ=Europe/London` | Specify a timezone to use EG Europe/London. |
+| `-e WEBROOT=domoticz` | Sets webroot to domoticz for usage with subfolder reverse proxy. Not needed unless reverse proxying. |
 | `-v /config` | Where Domoticz stores config files and data. |
 | `--device <path to device>` | For passing through USB devices. |
 
@@ -190,6 +193,7 @@ Below are the instructions for updating containers:
 
 ## Versions
 
+* **30.03.19:** - Add env variable to set webroot.
 * **23.03.19:** - Switching to new Base images, shift to arm32v7 tag.
 * **19.02.19:** - Fix branch for version logic.
 * **11.02.19:** - Add pipeline logic and multi arch.
diff --git a/readme-vars.yml b/readme-vars.yml
index a5741ac..df9e1be 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -45,7 +45,9 @@ param_devices:
 cap_add_param: false
 
 # optional container parameters
-opt_param_usage_include_env: false
+opt_param_usage_include_env: true
+opt_param_env_vars:
+  - { env_var: "WEBROOT", env_value: "domoticz", desc: "Sets webroot to domoticz for usage with subfolder reverse proxy. Not needed unless reverse proxying." }
 opt_param_usage_include_vols: false
 opt_param_usage_include_ports: false
 opt_param_device_map: false
@@ -73,6 +75,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "30.03.19:", desc: "Add env variable to set webroot." }
   - { date: "23.03.19:", desc: "Switching to new Base images, shift to arm32v7 tag." }
   - { date: "19.02.19:", desc: "Fix branch for version logic." }
   - { date: "11.02.19:", desc: "Add pipeline logic and multi arch." }
diff --git a/root/etc/services.d/domoticz/run b/root/etc/services.d/domoticz/run
index 639436e..5430e8b 100644
--- a/root/etc/services.d/domoticz/run
+++ b/root/etc/services.d/domoticz/run
@@ -1,7 +1,11 @@
 #!/usr/bin/with-contenv bash
+
+IFS=" " read -r -a RUN_ARRAY <<< "$WEBROOT"
+
 exec \
 	s6-setuidgid abc /var/lib/domoticz/domoticz \
 		-sslwww 1443 \
 		-sslcert /config/keys/server_cert.pem \
 		-userdata /config/ \
-		-dbase /config/domoticz.db
+		-dbase /config/domoticz.db \
+		-webroot "${RUN_ARRAY[@]}"