diff --git a/Dockerfile b/Dockerfile
index 171938f..1bb87f4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:18.10
 
-ENV LANG C.UTF-8 \
+ENV LANG=C.UTF-8 \
     PARTICL_DATADIR="/coindata/particl" \
     PARTICL_BINDIR="/opt/particl" \
     LITECOIN_BINDIR="/opt/litecoin" \
diff --git a/docker/.env b/docker/.env
index c0edf6b..315f1dd 100644
--- a/docker/.env
+++ b/docker/.env
@@ -1 +1,2 @@
-HTML_PORT=127.0.0.1:12700:12700
\ No newline at end of file
+HTML_PORT=127.0.0.1:12700:12700
+COINDATA_PATH=./coindata
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 70fe0e2..3a4a8f6 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -6,7 +6,7 @@ services:
         build:
             context: ../
         volumes:
-            - ./coindata:/coindata
+            - ${COINDATA_PATH}:/coindata
         ports:
             - "${HTML_PORT}"  # Expose only to localhost, see .env