diff --git a/res/values/strings.xml b/res/values/strings.xml
index e5e55c6c4f5..f6fe739f123 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -7782,7 +7782,7 @@
     <!-- Do not disturb: what to block summary, all effects -->
     <string name="zen_mode_block_effect_summary_all">Sound, vibration, and visual signs of notifications</string>
 
-    <string name="zen_mode_blocked_effects_footer">Notifications needed for basic phone activity and status will never be hidden</string>
+    <string name="zen_mode_blocked_effects_footer">Notifications needed for basic phone activity and status will never be hidden.</string>
 
     <!--  Do not disturb: Zen mode no sounds are exceptions to bypass do not disturb-->
     <string name="zen_mode_no_exceptions">None</string>