Fix crash when using Password Lock with TouchID API unavailable (#737)

2 files changed, 3 insertions, 2 deletions

diff --git a/src/components/auth/Locked.js b/src/components/auth/Locked.js
index 6142e78c6..c5e8a5aad 100644
--- a/src/components/auth/Locked.js
+++ b/src/components/auth/Locked.js
@@ -8,6 +8,7 @@ import Form from '../../lib/Form';
 import Input from '../ui/Input';
 import Button from '../ui/Button';
 import Infobox from '../ui/Infobox';
+import { isMac } from '../../environment';
 
 import { globalError as globalErrorPropType } from '../../prop-types';
 
@@ -100,7 +101,7 @@ export default @observer class Locked extends Component {
       useTouchIdToUnlock,
     } = this.props;
 
-    const touchIdEnabled = useTouchIdToUnlock && systemPreferences.canPromptTouchID();
+    const touchIdEnabled = isMac ? (useTouchIdToUnlock && systemPreferences.canPromptTouchID()) : false;
     const submitButtonLabel = touchIdEnabled ? intl.formatMessage(messages.unlockWithPassword) : intl.formatMessage(messages.submitButtonLabel);
 
     return (
diff --git a/src/components/settings/settings/EditSettingsForm.js b/src/components/settings/settings/EditSettingsForm.js
index 8faea708b..50358c36f 100644
--- a/src/components/settings/settings/EditSettingsForm.js
+++ b/src/components/settings/settings/EditSettingsForm.js
@@ -367,7 +367,7 @@ export default @observer class EditSettingsForm extends Component {
                 <Toggle field={form.$('lockingFeatureEnabled')} />
                 {lockingFeatureEnabled && (
                   <>
-                    {systemPreferences.canPromptTouchID() && (
+                    {isMac && systemPreferences.canPromptTouchID() && (
                       <Toggle field={form.$('useTouchIdToUnlock')} />
                     )}