diff --git a/.deployment/Dockerfile b/.deployment/Dockerfile
index 8a3c1122..b8ab2844 100644
--- a/.deployment/Dockerfile
+++ b/.deployment/Dockerfile
@@ -53,7 +53,7 @@ RUN DJANGO_DEPLOYED=1 ./testapp/manage.py collectstatic --noinput
 
 # handle permissions
 RUN useradd -M -d /web -s /bin/bash django
-RUN chown -R django.django $DJANGO_STATIC_ROOT
+RUN chown -R django:django $DJANGO_STATIC_ROOT
 
 EXPOSE 8080