diff --git a/tests/dockerfiles/.env.local b/tests/dockerfiles/.env.local
index ea12541..d142cdd 100644
--- a/tests/dockerfiles/.env.local
+++ b/tests/dockerfiles/.env.local
@@ -3,6 +3,7 @@
 # Builds Docker images locally:
 # git clone https://gitlab.com/psuapp/psu
 # cd psu/
+# cp tests/dockerfiles/.env.local tests/dockerfiles/.env
 # source tests/dockerfiles/.env
 # docker build --no-cache -t $PSU_IMAGE:$PSU_TAG -f Dockerfile .
 # docker build --no-cache -t $PSU_IMAGE:core-$PSU_TAG -f Dockerfile.core .