From 789767cb14ca70ccba0c096a425313e9ede67c1d Mon Sep 17 00:00:00 2001
From: AliMVP <alipadida@live.com>
Date: Mon, 12 Nov 2018 23:27:55 +0330
Subject: [PATCH] - Fixed a Nil Pointer Bug

---
 types.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/types.go b/types.go
index 1e13c7e..d7a29bc 100644
--- a/types.go
+++ b/types.go
@@ -178,7 +178,11 @@ func (m *Message) Time() time.Time {
 
 // IsCommand returns true if message starts with a "bot_command" entity.
 func (m *Message) IsCommand() bool {
-	if m.Entities == nil || len(*m.Entities) == 0 {
+	lenEntities := 0
+	if m.Entities != nil {
+		lenEntities = len(*m.Entities)
+	}
+	if m.Entities == nil || lenEntities == 0 {
 		return false
 	}