diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 8175a89fa..6ede12818 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -300,4 +300,7 @@ Meeting ist für %1$s geplant.</string>
     <string name="nc_last_moderator_title">Unterhaltung konnte nicht verlassen werden</string>
     <string name="nc_last_moderator">Sie müssen einen neuen Moderator bestimmen, bevor Sie %1$s verlassen können.</string>
 
+    <!-- Chat -->
+    <string name="nc_99_plus">99+</string>
+
     </resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 6bb5afbf9..ea8becd05 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -300,4 +300,7 @@
     <string name="nc_last_moderator_title">Não foi possível sair da conversa</string>
     <string name="nc_last_moderator">Você precisa promover alguém a moderador antes de sair de %1$s.</string>
 
+    <!-- Chat -->
+    <string name="nc_99_plus">99+</string>
+
     </resources>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index ae102d93a..1044f24e8 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -138,6 +138,12 @@
     <string name="nc_make_call_private">设置会话为私有</string>
     <string name="nc_delete_call">删除会话</string>
     <string name="nc_delete">删除</string>
+    <string name="nc_delete_conversation_default">请确认您真要移除此
+会话。</string>
+    <string name="nc_delete_conversation_one2one">如果您删除会话，它也将会
+从 %1$s 处删除。</string>
+    <string name="nc_delete_conversation_more">如果您删除了此会话，它也将会从所有其他参与者处删除。</string>
+
     <string name="nc_new_conversation">新的会话</string>
     <string name="nc_join_via_link">使用链接加入</string>
     <string name="nc_join_via_web">通过网页加入</string>