diff --git a/api/filters/patchstrategicmerge/patchstrategicmerge_test.go b/api/filters/patchstrategicmerge/patchstrategicmerge_test.go
index 23ca7d895..d21439c8c 100644
--- a/api/filters/patchstrategicmerge/patchstrategicmerge_test.go
+++ b/api/filters/patchstrategicmerge/patchstrategicmerge_test.go
@@ -31,6 +31,83 @@ apiVersion: apps/v1
 metadata:
   name: yourDeploy
 kind: Deployment
+`,
+		},
+		"container patch": {
+			input: `
+apiVersion: apps/v1
+metadata:
+  name: myDeploy
+kind: Deployment
+spec:
+  template:
+    spec:
+      containers:
+      - name: foo1
+      - name: foo2
+      - name: foo3
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+metadata:
+  name: myDeploy
+kind: Deployment
+spec:
+  template:
+    spec:
+      containers:
+      - name: foo0
+`),
+			expected: `
+apiVersion: apps/v1
+metadata:
+  name: myDeploy
+kind: Deployment
+spec:
+  template:
+    spec:
+      containers:
+      - name: foo1
+      - name: foo2
+      - name: foo3
+      - name: foo0
+`,
+		},
+		"volumes patch": {
+			input: `
+apiVersion: apps/v1
+metadata:
+  name: myDeploy
+kind: Deployment
+spec:
+  template:
+    spec:
+      volumes:
+      - name: foo1
+      - name: foo2
+      - name: foo3
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+metadata:
+  name: myDeploy
+kind: Deployment
+spec:
+  template:
+    spec:
+      volumes:
+      - name: foo0
+`),
+			expected: `
+apiVersion: apps/v1
+metadata:
+  name: myDeploy
+kind: Deployment
+spec:
+  template:
+    spec:
+      volumes:
+      - name: foo0
 `,
 		},
 		"nested patch": {
diff --git a/kyaml/yaml/merge2/list_test.go b/kyaml/yaml/merge2/list_test.go
index 78f2da912..172e22d15 100644
--- a/kyaml/yaml/merge2/list_test.go
+++ b/kyaml/yaml/merge2/list_test.go
@@ -38,6 +38,39 @@ spec:
       - name: foo3
 `,
 	},
+	{description: `merge k8s deployment volumes`,
+		source: `
+apiVersion: apps/v1
+kind: Deployment
+spec:
+  template:
+    spec:
+      volumes:
+      - name: foo1
+      - name: foo2
+      - name: foo3
+`,
+		dest: `
+apiVersion: apps/v1
+kind: Deployment
+spec:
+  template:
+    spec:
+      volumes:
+      - name: foo0
+`,
+		expected: `
+apiVersion: apps/v1
+kind: Deployment
+spec:
+  template:
+    spec:
+      volumes:
+      - name: foo1
+      - name: foo2
+      - name: foo3
+`,
+	},
 
 	{description: `replace List -- different value in dest`,
 		source: `