2 files changed, 17 insertions, 0 deletions

diff --git a/src/stores/ServicesStore.js b/src/stores/ServicesStore.js
index 752f287e8..3dba217b2 100644
--- a/src/stores/ServicesStore.js
+++ b/src/stores/ServicesStore.js
@@ -315,6 +315,7 @@ export default class ServicesStore extends Store {
       customIcon: false,
       isDarkModeEnabled: false,
       spellcheckerLanguage: SPELLCHECKER_LOCALES[this.stores.settings.app.spellcheckerLanguage],
+      userAgentPref: '',
     }, serviceData);
 
     let data = serviceData;
diff --git a/src/stores/SettingsStore.js b/src/stores/SettingsStore.js
index 15b0db120..b433efd45 100644
--- a/src/stores/SettingsStore.js
+++ b/src/stores/SettingsStore.js
@@ -320,5 +320,21 @@ export default class SettingsStore extends Store {
         },
       });
     }
+
+    if (!this.all.migration['user-agent-settings']) {
+      this.actions.settings.update({
+        type: 'app',
+        data: {
+          userAgentPref: DEFAULT_APP_SETTINGS.userAgentPref,
+        },
+      });
+
+      this.actions.settings.update({
+        type: 'migration',
+        data: {
+          'user-agent-settings': true,
+        },
+      });
+    }
   }
 }