diff --git a/Dockerfile b/Dockerfile
index 193691b..ec68d06 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,8 @@ LABEL maintainer="Robert Kaussow <mail@geeklabor.de>" \
     org.label-schema.vendor="Robert Kaussow" \
     org.label-schema.schema-version="1.0"
 
+ENV PY_COLORS=1
+
 ADD dist/ansible_doctor-*.whl /
 
 RUN \