diff --git a/docker/docker-py3-kms-minimal/Dockerfile b/docker/docker-py3-kms-minimal/Dockerfile
index 1807b37..4fb1f36 100644
--- a/docker/docker-py3-kms-minimal/Dockerfile
+++ b/docker/docker-py3-kms-minimal/Dockerfile
@@ -9,7 +9,7 @@ ENV LCID=1033
 ENV CLIENT_COUNT=26
 ENV ACTIVATION_INTERVAL=120
 ENV RENEWAL_INTERVAL=10080
-ENV HWID RANDOM
+ENV HWID=RANDOM
 ENV LOGLEVEL=INFO
 ENV LOGFILE=STDOUT
 ENV LOGSIZE=""