From 972d1c4895c4ee6da1b6745e1bb9cb71ee5d6d08 Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Sat, 14 Jul 2012 23:29:14 +0000
Subject: [PATCH]

---
 coders/png.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/coders/png.c b/coders/png.c
index 350c8baa4..f88f7924f 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -8161,7 +8161,7 @@ static MagickBooleanType WriteOnePNGImage(MngInfo *mng_info,
                        ping_trans_color.blue=(unsigned short)
                          GetPixelBlue(image,q);
                        ping_trans_color.gray=(unsigned short)
-                         GetPixelRed(image,q);
+                         GetPixelGray(image,q);
                        number_transparent = 1;
                      }
 
-- 
2.50.1