diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index 3f5d6591f..63ed2b3c4 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -1347,6 +1347,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_admin_log_signatures_enabled" = "{from} enabled signatures";
 "lng_admin_log_signatures_disabled" = "{from} disabled signatures";
 "lng_admin_log_pinned_message" = "{from} pinned message:";
+"lng_admin_log_unpinned_message" = "{from} unpinned message";
 "lng_admin_log_edited_caption" = "{from} edited caption:";
 "lng_admin_log_removed_caption" = "{from} removed caption";
 "lng_admin_log_previous_caption" = "Original caption";
diff --git a/Telegram/SourceFiles/history/history_admin_log_item.cpp b/Telegram/SourceFiles/history/history_admin_log_item.cpp
index 7fb6d4421..66154d966 100644
--- a/Telegram/SourceFiles/history/history_admin_log_item.cpp
+++ b/Telegram/SourceFiles/history/history_admin_log_item.cpp
@@ -327,12 +327,17 @@ void GenerateItems(gsl::not_null<History*> history, LocalIdManager &idManager, c
 	};
 
 	auto createUpdatePinned = [&](const MTPDchannelAdminLogEventActionUpdatePinned &action) {
-		auto text = lng_admin_log_pinned_message(lt_from, fromLinkText);
-		addSimpleServiceMessage(text);
+		if (action.vmessage.type() == mtpc_messageEmpty) {
+			auto text = lng_admin_log_unpinned_message(lt_from, fromLinkText);
+			addSimpleServiceMessage(text);
+		} else {
+			auto text = lng_admin_log_pinned_message(lt_from, fromLinkText);
+			addSimpleServiceMessage(text);
 
-		auto applyServiceAction = false;
-		auto detachExistingItem = false;
-		addPart(history->createItem(PrepareLogMessage(action.vmessage, idManager.next(), date.v), applyServiceAction, detachExistingItem));
+			auto applyServiceAction = false;
+			auto detachExistingItem = false;
+			addPart(history->createItem(PrepareLogMessage(action.vmessage, idManager.next(), date.v), applyServiceAction, detachExistingItem));
+		}
 	};
 
 	auto createEditMessage = [&](const MTPDchannelAdminLogEventActionEditMessage &action) {