diff --git a/Dockerfile b/Dockerfile
index 314bf47..66d4609 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,7 +32,7 @@ FROM onezoom/alpine-compass-python-perl-node:12 as compile_web2py
 WORKDIR /opt/tmp
 RUN git clone --recursive https://github.com/web2py/web2py.git --depth 1 --branch v2.21.1 --single-branch web2py
 WORKDIR /opt
-ENV WEB2PY_MIN=1
+ENV WEB2PY_MIN=true
 RUN if [ "${WEB2PY_MIN}" == true ]; then \
       cd tmp/web2py; \
       python3 scripts/make_min_web2py.py ../../tmp/web2py-min; \