diff --git a/bundles/org.openhab.ui/web/src/pages/settings/things/thing-details.vue b/bundles/org.openhab.ui/web/src/pages/settings/things/thing-details.vue
index a536206afc..7bf64a6b5b 100644
--- a/bundles/org.openhab.ui/web/src/pages/settings/things/thing-details.vue
+++ b/bundles/org.openhab.ui/web/src/pages/settings/things/thing-details.vue
@@ -490,7 +490,7 @@ export default {
     },
     toggleDisabled () {
       const enable = (this.thing.statusInfo.statusDetail === 'DISABLED')
-      this.$oh.api.putPlain('/rest/things/' + this.thingId + '/enable', enable.toString(), 'application/json', 'application/json').then((data) => {
+      this.$oh.api.putPlain('/rest/things/' + this.thingId + '/enable', enable.toString()).then((data) => {
         this.$f7.toast.create({
           text: (enable) ? 'Thing enabled' : 'Thing disabled',
           destroyOnClose: true,
diff --git a/bundles/org.openhab.ui/web/src/pages/settings/things/things-list.vue b/bundles/org.openhab.ui/web/src/pages/settings/things/things-list.vue
index cc9f16c954..01994ef101 100644
--- a/bundles/org.openhab.ui/web/src/pages/settings/things/things-list.vue
+++ b/bundles/org.openhab.ui/web/src/pages/settings/things/things-list.vue
@@ -276,7 +276,7 @@ export default {
     doDisableEnableSelected (enable) {
       let dialog = this.$f7.dialog.progress('Please Wait...')
 
-      const promises = this.selectedItems.map((i) => this.$oh.api.putPlain('/rest/things/' + i + '/enable', enable.toString(), 'application/json', 'application/json'))
+      const promises = this.selectedItems.map((i) => this.$oh.api.putPlain('/rest/things/' + i + '/enable', enable.toString()))
       Promise.all(promises).then((data) => {
         this.$f7.toast.create({
           text: (enable) ? 'Things enabled' : 'Things disabled',