diff --git a/.devcontainer/setup.sh b/.devcontainer/setup.sh
index 46d234d5..6e7ed6d5 100755
--- a/.devcontainer/setup.sh
+++ b/.devcontainer/setup.sh
@@ -1,6 +1,6 @@
 WILCO_ID="`cat .wilco`"
 ENGINE_EVENT_ENDPOINT="${ENGINE_BASE_URL}/users/${WILCO_ID}/event"
-CODESPACE_BACKEND_HOST="${CODESPACE_NAME}-3000.preview.${GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN}"
+CODESPACE_BACKEND_HOST=$(curl -s "${ENGINE_BASE_URL}/api/v1/codespace/backendHost?codespaceName=${CODESPACE_NAME}&portForwarding=${GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN}" | jq -r '.codespaceBackendHost')
 CODESPACE_BACKEND_URL="https://${CODESPACE_BACKEND_HOST}"
 
 # Update engine that codespace started for user