diff --git a/e2e/e2e_test.go b/e2e/e2e_test.go
index 53ba4be..411bf07 100644
--- a/e2e/e2e_test.go
+++ b/e2e/e2e_test.go
@@ -192,6 +192,26 @@ var _ = Describe("The maintenance controller", func() {
 		Expect(eventList.Items).To(HaveLen(3))
 	})
 
+	It("should remove the maintenance approval", func() {
+		Eventually(func(g Gomega) bool {
+			node := &corev1.Node{}
+			err := k8sClient.Get(context.Background(), maintainedKey, node)
+			g.Expect(err).To(Succeed())
+			_, exists := node.Labels["cloud.sap/maintenance-approved"]
+			return exists
+		}).Should(BeFalse())
+	})
+
+	It("should remove the flatcar approval", func() {
+		Eventually(func(g Gomega) bool {
+			node := &corev1.Node{}
+			err := k8sClient.Get(context.Background(), maintainedKey, node)
+			g.Expect(err).To(Succeed())
+			_, exists := node.Labels["flatcar-linux-update.v1.flatcar-linux.net/reboot-ok"]
+			return exists
+		}).Should(BeFalse())
+	})
+
 	It("should recreate nodes with the kubernikus controller", func() {
 		By("fetch node names")
 		nodes := &v1.NodeList{}
diff --git a/go.sum b/go.sum
index 87edbac..39b906c 100644
--- a/go.sum
+++ b/go.sum
@@ -949,8 +949,6 @@ gopkg.in/hjson/hjson-go.v3 v3.0.1/go.mod h1:X6zrTSVeImfwfZLfgQdInl9mWjqPqgH90jom
 gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ini.v1 v1.66.5 h1:zfiCO0p88Fj4f6NR6KR5WdGMQ02U8vlDnN6HuD2xv5o=
-gopkg.in/ini.v1 v1.66.5/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.66.6 h1:LATuAqN/shcYAOkv3wl2L4rkaKqkcgTBQjOyYDvcPKI=
 gopkg.in/ini.v1 v1.66.6/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=