diff --git a/docker/Dockerfile b/docker/Dockerfile
index c4f0b36492..1266a282e4 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -112,7 +112,7 @@ FROM base as dev
 # The development image requires the source code to be mounted to /home/inventree/
 # So from here, we don't actually "do" anything, apart from some file management
 
-ENV INVENTREE_DEV_DIR = "${INVENTREE_HOME}/dev"
+ENV INVENTREE_DEV_DIR="${INVENTREE_HOME}/dev"
 
 # Override default path settings
 ENV INVENTREE_STATIC_ROOT="${INVENTREE_DEV_DIR}/static"
diff --git a/docker/dev-config.env b/docker/dev-config.env
index ec00c47251..67810291aa 100644
--- a/docker/dev-config.env
+++ b/docker/dev-config.env
@@ -1,5 +1,7 @@
+# InvenTree environment variables for a development setup
+
 # Set DEBUG to False for a production environment!
-INVENTREE_DEBUG=true
+INVENTREE_DEBUG=True
 
 # Database linking options
 INVENTREE_DB_ENGINE=sqlite3