diff --git a/README.md b/README.md
index 6281d0ae..e8569476 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,15 @@ Then run:
 Upon initial install, an example administrator user, example dataset, concept database, vocab and project are setup. 
 The next session provides further details.
 
+4\. (Optional), Environment variables are used to configure the app:
+
+|Parameter|Description|
+|---------|-----------|
+|MEDCAT_CONFIG_FILE|MedCAT config file as described [here](https://github.com/CogStack/MedCAT/blob/master/medcat/config.py)|
+|BEHIND_RP| If you're running MedCATtrainer, use 1, othewise this defaults to 0 i.e. False|
+
+
+
 <a name="admin-setup"></a>
 # Administrator Setup
  
diff --git a/docker-compose.yml b/docker-compose.yml
index 185de9ca..63a446f2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,6 +7,7 @@ services:
     restart: always
     image: cogstacksystems/medcat-trainer:latest
     volumes:
+      - ./configs:/home/configs
       - api-media:/home/api/media
       - api-static:/home/api/static
       - api-db:/home/api/db
diff --git a/envs/env b/envs/env
index 271dcb0c..8bcb0637 100644
--- a/envs/env
+++ b/envs/env
@@ -1,2 +1 @@
-medcat_config_file=/home/configs/base.txt
-behind_rp=0
\ No newline at end of file
+MEDCAT_CONFIG_FILE=/home/configs/base.txt
diff --git a/webapp/api/api/utils.py b/webapp/api/api/utils.py
index 7565bb59..47803c4d 100644
--- a/webapp/api/api/utils.py
+++ b/webapp/api/api/utils.py
@@ -270,7 +270,7 @@ def get_medcat(CDB_MAP, VOCAB_MAP, CAT_MAP, project):
         else:
             cdb_path = project.concept_db.cdb_file.path
             cdb = CDB.load(cdb_path)
-            cdb.config.parse_config_file(path=os.getenv("medcat_config_file"))
+            cdb.config.parse_config_file(path=os.getenv("MEDCAT_CONFIG_FILE"))
             CDB_MAP[cdb_id] = cdb
 
         if vocab_id in VOCAB_MAP:
diff --git a/webapp/api/api/views.py b/webapp/api/api/views.py
index 0a8b9412..9f0bc254 100644
--- a/webapp/api/api/views.py
+++ b/webapp/api/api/views.py
@@ -619,4 +619,4 @@ def download_deployment(request):
 
 @api_view(http_method_names=['GET'])
 def behind_reverse_proxy(request):
-    return Response(bool(int(os.environ.get('behind_rp', False))))
+    return Response(bool(int(os.environ.get('BEHIND_RP', False))))