diff --git a/ui/src/views/devices/DeviceLayout.tsx b/ui/src/views/devices/DeviceLayout.tsx
index 6c90c790..941b3904 100644
--- a/ui/src/views/devices/DeviceLayout.tsx
+++ b/ui/src/views/devices/DeviceLayout.tsx
@@ -147,7 +147,7 @@ class DeviceLayout extends Component<IProps, IState> {
               confirm={device.getName()}
               onConfirm={this.deleteDevice}
             >
-              <Button danger type="primary">Delete devicee</Button>
+              <Button danger type="primary">Delete device</Button>
             </DeleteConfirm>
           ]}
         />
diff --git a/ui/src/views/devices/ListDevices.tsx b/ui/src/views/devices/ListDevices.tsx
index 34903791..94f974e0 100644
--- a/ui/src/views/devices/ListDevices.tsx
+++ b/ui/src/views/devices/ListDevices.tsx
@@ -184,7 +184,7 @@ class ListDevices extends Component<IProps, IState> {
       <Space direction="vertical" size="large" style={{width: "100%"}}>
         <Modal title="Add selected devices to multicast-group" visible={this.state.mgModalVisible} onOk={this.handleMgModalOk} onCancel={this.hideMgModal} okButtonProps={{disabled: this.state.mgSelected === ""}}>
           <Space direction="vertical" size="large" style={{width: "100%"}}>
-            <Select style={{width: "100%"}} onChange={this.onMgSelected}>
+            <Select style={{width: "100%"}} onChange={this.onMgSelected} placeholder="Select Multicast-group">
               {mgOptions}
             </Select>
           </Space>