diff --git a/res/values/themes.xml b/res/values/themes.xml
index a8ae50638ee..d777fd0abb9 100644
--- a/res/values/themes.xml
+++ b/res/values/themes.xml
@@ -103,6 +103,7 @@
         <item name="android:trackTint">@color/switchbar_switch_track_tint</item>
         <item name="android:thumbTint">@color/switchbar_switch_thumb_tint</item>
         <item name="android:minHeight">@dimen/min_tap_target_size</item>
+        <item name="android:minWidth">@dimen/min_tap_target_size</item>
     </style>
 
     <style name="Theme.CryptKeeper" parent="@android:style/Theme.Material.NoActionBar">