diff --git a/Telegram/SourceFiles/structs.cpp b/Telegram/SourceFiles/structs.cpp
index 4653e8714..58867ab9d 100644
--- a/Telegram/SourceFiles/structs.cpp
+++ b/Telegram/SourceFiles/structs.cpp
@@ -922,6 +922,15 @@ void ChannelData::setPinnedMessageId(MsgId messageId) {
 	}
 }
 
+bool ChannelData::canPinMessages() const {
+	if (isMegagroup()) {
+		return (adminRights().is_pin_messages()) || amCreator();
+	}
+	// yes, you could pin messages in a channel if you have
+	// "edit messages" permission.
+	return (adminRights().is_edit_messages()) || amCreator();
+}
+
 bool ChannelData::canNotEditLastAdmin(not_null<UserData *> user) const {
 	if (mgInfo) {
 		auto i = mgInfo->lastAdmins.constFind(user);
diff --git a/Telegram/SourceFiles/structs.h b/Telegram/SourceFiles/structs.h
index 1b661e1b4..394d2902f 100644
--- a/Telegram/SourceFiles/structs.h
+++ b/Telegram/SourceFiles/structs.h
@@ -909,9 +909,6 @@ public:
 	bool canAddAdmins() const {
 		return adminRights().is_add_admins() || amCreator();
 	}
-	bool canPinMessages() const {
-		return adminRights().is_pin_messages() || amCreator();
-	}
 	bool canPublish() const {
 		return adminRights().is_post_messages() || amCreator();
 	}
@@ -1004,6 +1001,8 @@ public:
 		setPinnedMessageId(0);
 	}
 
+	bool canPinMessages() const;
+
 private:
 	bool canNotEditLastAdmin(not_null<UserData *> user) const;