diff --git a/indra/newview/llfloaterchat.cpp b/indra/newview/llfloaterchat.cpp
index 57b2da648..65e17c5a7 100644
--- a/indra/newview/llfloaterchat.cpp
+++ b/indra/newview/llfloaterchat.cpp
@@ -339,8 +339,6 @@ void LLFloaterChat::setHistoryCursorAndScrollToEnd()
 //static
 void LLFloaterChat::onClickToggleShowMute(bool show_mute, LLTextEditor* history_editor, LLTextEditor* history_editor_with_mute)
 {
-	history_editor->setVisible(!show_mute);
-	history_editor_with_mute->setVisible(show_mute);
 	(show_mute ? history_editor_with_mute : history_editor)->setCursorAndScrollToEnd();
 }
 
diff --git a/indra/newview/skins/default/xui/en-us/floater_chat_history.xml b/indra/newview/skins/default/xui/en-us/floater_chat_history.xml
index 817a8b9d4..1c34ab977 100644
--- a/indra/newview/skins/default/xui/en-us/floater_chat_history.xml
+++ b/indra/newview/skins/default/xui/en-us/floater_chat_history.xml
@@ -19,8 +19,8 @@
 			<!--check_box bottom_delta="-15" enabled="true" follows="left|top" font="SansSerifSmall" height="20" initial_value="false" label="Translate Chat (powered by Google)" name="translate chat" width="100" control_name="TranslateChat"/-->
 			<button bottom_delta="2" left_delta="120" follows="left|top" font="SansSerifSmall" height="20" width="100" label="Open History" name="chat_history_open" tool_tip="Click here to open chat history in external editor."/>
 			<button bottom_delta="0" follows="right|top" height="20" label="&lt; &lt;" label_selected="&gt; &gt;" toggle="true" left="272" name="toggle_active_speakers_btn" right="305" tool_tip="Click here to show a list of active participants in this IM session." width="80"/>
-			<text_editor type="string" length="1" bg_readonly_color="ChatHistoryBgColor" bg_writeable_color="ChatHistoryBgColor" bottom="0" enabled="false" follows="left|top|right|bottom" font="SansSerif" height="107" left="5" max_length="2147483647" name="Chat History Editor" text_color="ChatHistoryTextColor" track_bottom="true" text_readonly_color="ChatHistoryTextColor" width="300" word_wrap="true"/>
-			<text_editor type="string" length="1" bg_readonly_color="ChatHistoryBgColor" bg_writeable_color="ChatHistoryBgColor" bottom="0" enabled="false" follows="left|top|right|bottom" font="SansSerif" height="107" max_length="2147483647" name="Chat History Editor with mute" text_color="ChatHistoryTextColor" track_bottom="true" text_readonly_color="ChatHistoryTextColor" width="300" word_wrap="true"/>
+			<text_editor type="string" length="1" bg_readonly_color="ChatHistoryBgColor" bg_writeable_color="ChatHistoryBgColor" bottom="0" enabled="false" follows="left|top|right|bottom" font="SansSerif" height="107" left="5" max_length="2147483647" name="Chat History Editor" text_color="ChatHistoryTextColor" track_bottom="true" text_readonly_color="ChatHistoryTextColor" width="300" word_wrap="true" invisibility_control="ShowMutedText"/>
+			<text_editor type="string" length="1" bg_readonly_color="ChatHistoryBgColor" bg_writeable_color="ChatHistoryBgColor" bottom="0" enabled="false" follows="left|top|right|bottom" font="SansSerif" height="107" max_length="2147483647" name="Chat History Editor with mute" text_color="ChatHistoryTextColor" track_bottom="true" text_readonly_color="ChatHistoryTextColor" width="300" word_wrap="true" visibility_control="ShowMutedText"/>
           </layout_panel>
           <layout_panel user_resize="false" auto_resize="false" bottom_delta="-25" follows="left|right|bottom" left="5" name="chat_layout_panel" right="-5" tab_group="1" height="25">
 			<panel bottom="5" follows="left|right|bottom" left="5" name="chat_panel" right="-5" top="25">