diff --git a/packages/hda-cms-extension-e2e/setup.sh b/packages/hda-cms-extension-e2e/setup.sh
index 4a74c24..efd1981 100755
--- a/packages/hda-cms-extension-e2e/setup.sh
+++ b/packages/hda-cms-extension-e2e/setup.sh
@@ -1,6 +1,7 @@
 #!/usr/bin/env zsh
 TABSHIFT_DIRECTUS_PATH="${0:h}/../../apps/directus"
 TABSHIFT_DIRECTUS_NAME='tabshift4docker/directus'
+CMS_EXTENSION_PATH="${0:h}/../hda-cms-extension"
 DOCKER_E2E_SETUP_PATH="${0:h}/docker"
 
 start_docker_runtime() {
@@ -50,6 +51,12 @@ stop_docker_compose_services_and_runtime() {
 	stop_docker_runtime
 }
 
+build_cms_extension() {
+	pushd -q $CMS_EXTENSION_PATH
+	pnpm build
+	popd -q
+}
+
 trap 'docker container prune -f' INT TERM EXIT
 
 main() {
@@ -57,9 +64,11 @@ main() {
 
 	case $CMD in
 		start)
+			build_cms_extension
 			start_docker_compose_service_in_background
 			;;
 		start-fg)
+			build_cms_extension
 			start_docker_compose_service_in_foreground
 			;;
 		stop-all)