diff --git a/api/krusty/issue3424_test.go b/api/krusty/issue3424_test.go
new file mode 100644
index 000000000..3b3c8cda8
--- /dev/null
+++ b/api/krusty/issue3424_test.go
@@ -0,0 +1,74 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+// Demonstrate unwanted quotes added to an integer by a strategic merge patch.
+func TestIssue3424Basics(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteF("pdb-patch.yaml", `
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: generic-pdb
+spec:
+  maxUnavailable: 1
+`)
+	th.WriteF("my_file.yaml", `
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: championships-api
+  labels:
+    faceit-pdb: default
+spec:
+  maxUnavailable: 100%
+---
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: championships-api-2
+  labels:
+    faceit-pdb: default
+spec:
+  maxUnavailable: 100%
+`)
+	th.WriteK(".", `
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+patches:
+- path: pdb-patch.yaml
+  target:
+    kind: PodDisruptionBudget
+    labelSelector: faceit-pdb=default
+
+resources:
+- my_file.yaml
+`)
+	m := th.Run(".", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  labels:
+    faceit-pdb: default
+  name: championships-api
+spec:
+  maxUnavailable: "1"
+---
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  labels:
+    faceit-pdb: default
+  name: championships-api-2
+spec:
+  maxUnavailable: "1"
+`)
+}