diff --git a/hack/update-generated-defaulters.sh b/hack/update-generated-defaulters.sh
new file mode 100755
index 000000000..c75e3a6d3
--- /dev/null
+++ b/hack/update-generated-defaulters.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+source "$(dirname "${BASH_SOURCE}")/lib/init.sh"
+
+go build -o "${OS_OUTPUT_BINPATH}/defaulter-gen" "${PRJ_PREFIX}/vendor/k8s.io/kubernetes/cmd/libs/go2idl/defaulter-gen"
+
+${OS_OUTPUT_BINPATH}/defaulter-gen \
+                --go-header-file "hack/boilerplate/boilerplate.go.txt" \
+                --input-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig,${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api,${PRJ_PREFIX}/pkg/api/v1alpha1" \
+		--extra-peer-dirs "${PRJ_PREFIX}/pkg/apis/componentconfig,${PRJ_PREFIX}/pkg/apis/componentconfig/v1alpha1,${PRJ_PREFIX}/pkg/api,${PRJ_PREFIX}/pkg/api/v1alpha1" \
+                --output-file-base zz_generated.defaults