diff --git a/Dockerfile b/Dockerfile
index 1473924..931b522 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,5 @@
 FROM python:3.7-alpine
 ENV PYTHONUNBUFFERED 1
-ENV IS_DOCKER 0
 WORKDIR /app
 COPY requirements.txt ./
 COPY requirements.production.txt ./
diff --git a/Dockerfile.prod b/Dockerfile.prod
index 299a4ce..9452861 100644
--- a/Dockerfile.prod
+++ b/Dockerfile.prod
@@ -1,6 +1,5 @@
 FROM python:3.7-alpine
 ENV PYTHONUNBUFFERED 1
-ENV IS_DOCKER 0
 WORKDIR /app
 COPY requirements.txt ./
 COPY requirements.production.txt ./