diff --git a/docker-resources/generate-instance.sh b/docker-resources/generate-instance.sh
index 373a559fa..a2f331d2d 100755
--- a/docker-resources/generate-instance.sh
+++ b/docker-resources/generate-instance.sh
@@ -4,7 +4,6 @@ set -euo pipefail
 
 mkdir -p pgdata
 mkdir -p docker-setup-tmp
-chmod a+w docker-setup-tmp
 
 # This is sorta special in that we need the generated_config.exs to make it onto the host
 # We can also automate the DB setup here!