diff --git a/res/values/strings.xml b/res/values/strings.xml
index 62f1f9b58..f646c8eea 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -594,6 +594,9 @@
     <string name="systemmsg_ephemeral_timer_week">Disappearing messages timer set to 1 week.</string>
     <string name="systemmsg_ephemeral_timer_four_weeks">Disappearing messages timer set to 4 weeks.</string>
 
+    <!-- Translators: Protection disabled/enabled messages may be displayed together with a "big shield" and may be suffixed by systemmsg_action_by_user or systemmsg_action_by_me -->
+    <string name="systemmsg_chat_protection_disabled">Chat protection disabled.</string>
+    <string name="systemmsg_chat_protection_enabled">Chat protection enabled.</string>
 
     <!-- screen lock -->
     <string name="screenlock_title">Screen lock</string>
diff --git a/src/org/thoughtcrime/securesms/connect/ApplicationDcContext.java b/src/org/thoughtcrime/securesms/connect/ApplicationDcContext.java
index 017720737..18b085f51 100644
--- a/src/org/thoughtcrime/securesms/connect/ApplicationDcContext.java
+++ b/src/org/thoughtcrime/securesms/connect/ApplicationDcContext.java
@@ -165,6 +165,8 @@ public class ApplicationDcContext extends DcContext {
     setStockTranslation(82, context.getString(R.string.videochat_invitation));
     setStockTranslation(83, context.getString(R.string.videochat_invitation_body));
     setStockTranslation(84, context.getString(R.string.configuration_failed_with_error));
+    setStockTranslation(88, context.getString(R.string.systemmsg_chat_protection_enabled));
+    setStockTranslation(89, context.getString(R.string.systemmsg_chat_protection_disabled));
     setStockTranslation(90, context.getString(R.string.reply_noun));
   }