diff --git a/app/src/main/res/values-vi/strings.xml b/app/src/main/res/values-vi/strings.xml
index 5fa0235ae..bdc06e51f 100644
--- a/app/src/main/res/values-vi/strings.xml
+++ b/app/src/main/res/values-vi/strings.xml
@@ -1156,4 +1156,7 @@ và %d toots khác để khám phá</item>
     <string name="apply_changes">Apply changes</string>
     <string name="restart_message">You need to restart the application to apply changes</string>
     <string name="restart">Restart</string>
+    <string name="pref_custom_theme">Use a custom theme</string>
+    <string name="pref_custom_theme_summary">Allow to override colors of the  selected theme above</string>
+    <string name="theming">Theming</string>
 </resources>