From 6c88e0ad4f2c754b0452ef65809a16bf925bf8e6 Mon Sep 17 00:00:00 2001
From: Cristy <mikayla-grace@urban-warrior.org>
Date: Sun, 17 Feb 2019 09:13:00 -0500
Subject: [PATCH] 
 https://imagemagick.org/discourse-server/viewtopic.php?f=2&t=34362

---
 MagickCore/image.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MagickCore/image.c b/MagickCore/image.c
index ff49078e2..65e865af5 100644
--- a/MagickCore/image.c
+++ b/MagickCore/image.c
@@ -1750,7 +1750,7 @@ MagickExport size_t InterpretImageFilename(const ImageInfo *image_info,
         *q='\0';
         (void) CopyMagickString(filename+(p-format-offset),option,(size_t)
           (MagickPathExtent-(p-format-offset)));
-        offset+=strlen(pattern)-4;
+        offset+=strlen(pattern)-strlen(option)+3;
         *q=c;
         (void) ConcatenateMagickString(filename,r+1,MagickPathExtent);
         canonical=MagickTrue;
-- 
2.40.0