diff --git a/Telegram/Resources/lang.strings b/Telegram/Resources/lang.strings
index bfaa9b231..9f2308730 100644
--- a/Telegram/Resources/lang.strings
+++ b/Telegram/Resources/lang.strings
@@ -430,6 +430,7 @@ Copyright (c) 2014-2015 John Preston, https://desktop.telegram.org
 "lng_channel_admins" = "Administrators";
 "lng_channel_add_admin" = "Add Administrator";
 "lng_channel_admin_sure" = "Add {user} to administrators?";
+"lng_channel_admins_too_much" = "Sorry, you have reached the limit of channel administrators. Please remove some administrator first.";
 
 "lng_participant_filter" = "Search";
 "lng_participant_invite" = "Invite";
diff --git a/Telegram/SourceFiles/boxes/contactsbox.cpp b/Telegram/SourceFiles/boxes/contactsbox.cpp
index 02af818fd..32bafe890 100644
--- a/Telegram/SourceFiles/boxes/contactsbox.cpp
+++ b/Telegram/SourceFiles/boxes/contactsbox.cpp
@@ -199,7 +199,9 @@ bool ContactsInner::addAdminFail(const RPCError &error, mtpRequestId req) {
 	_addAdminRequestId = 0;
 	if (error.type() == "USERS_TOO_MUCH") {
 		App::wnd()->replaceLayer(new MaxInviteBox(_channel->invitationUrl));
-	} else {
+	} else if (error.type() == "ADMINS_TOO_MUCH") {
+		App::wnd()->replaceLayer(new InformBox(lang(lng_channel_admins_too_much)));
+	} else  {
 		if (_addAdminBox) _addAdminBox->onClose();
 		emit adminAdded();
 	}